Triacontahenphobia

Triacontahenphobia is the fear of the number 31.

Triacontahenphobia might be linked to Triskaidekaphobia (the fear of the number 13), since 31 is 13 in reverse.

Some other people fear 31 because it adds to 4 (2+2=4), which is considered a very unlucky in many Asian cultures. Because of that, this phobia may be an offspring of Tetraphobia.

Number phobias

Oudenophobia (fear of 0) · Henophobia (fear of 1) · Dyophobia (fear of 2) · Triskaphobia (fear of 3) · Tetraphobia (fear of 4) · Pentaphobia (fear of 5) · Hexaphobia (fear of 6) · Heptaphobia (fear of 7) · Octophobia (fear of 8) · Enneaphobia (fear of 9) · Decaphobia (fear of 10) · Hendecaphobia (fear of 11) · Dodecaphobia (fear of 12) · Triskaidekaphobia (fear of 13) · Tetradecaphobia (fear of 14) · Dekapentophobia (fear of 15) · Hexadecaphobia (fear of 16) · Heptadecaphobia (fear of 17) · Octodecaphobia (fear of 18) · Enneadecaphobia (fear of 19) · Eikosiphobia (fear of 20) · Eikosihenaphobia (fear of 21) · Eikosidyophobia (fear of 22) · Eikositriophobia (fear of 23) · Eikositetraphobia (fear of 24) · Eikosipentaphobia (fear of 25) · Eikosihexaphobia (fear of 26) · Eikosiheptaphobia (fear of 27) · Eikosioctaphobia (fear of 28) · Eikosienneaphobia (fear of 29) · Trigintiphobia (fear of 30) · Triacontahenphobia (fear of 31) · Triantadyophobia (fear of 32) · Triantatriaphobia (fear of 33) · Triantatesseraphobia (fear of 34) · Triantapentaphobia (fear of 35) · Triantahexaphobia (fear of 36) · Triakontenneaphobia (fear of 39) · Tessarakontaphobia (fear of 40) · Tessarakontadyophobia (fear of 42) · Tessarakontaheptaphobia (fear of 47) · Dyoquinquagintaphobia (fear of 52) · Pentekontoctophobia (fear of 58) · Hexekontadyophobia (fear of 62) · Hexekontaheptaphobia (fear of 67) · Hexekontenneaphobia (fear of 69) · Hebdomekontahenophobia (fear of 71) · Ogdokontaheptaphobia (fear of 87) · Ogdokontaoctaphobia (fear of 88) · Enenekontenneaphobia (fear of 99) · Hekatophobia (fear of 100) · Hekatohendecaphobia (fear of 111) · Hekatenenekontahenophobia (fear of 191) · Diakosioihekkaidekaphobia (fear of 216) · Diakosioipentekontaphobia (fear of 250) · Triakosioitriakontatriophobia (fear of 333) · Tetrakosioeikosiphobia (fear of 420) · Pentakosioipentekontahenophobia (fear of 551) · Hexakosioihekkaidekaphobia (fear of 616) · Hexakosioihexekontahexaphobia (fear of 666) · Heftakosioitessarakontaheptaphobia (fear of 747) · Enniakosioihendecaphobia (fear of 911) · Enniakosioenenekontenneaphobia (fear of 999) • Milliphobia (fear of 1000) · Quattuormiliasescentoruphobia·(fear of 4600) · Tessarakontadyochilahexekontenneaphobia (fear of 42069) Nongentiseptuagintatrestrillionsescentiquinquagintanovemmiliacentumtredecimdeciesoctingentivigintiquattuormiliatrecentiphobia(fear of 973,659,113,824,315) · Compustitusnumerophobia (fear of composite numbers) · Meganumerophobia (fear of large numbers) · Imparnumerophobia (fear of odd numbers) · Omalonumerophobia (fear of even numbers) · Piphobia (fear of pi) · Phiphobia (fear of the golden ratio) · Primonumerophobia (fear of prime numbers) · Paranumerophobia (fear of irrational numbers) · Neganumerophobia (fear of negative numbers) · Decadisophobia (fear of decimals)