31312212004159 has 2 divisors, whose sum is σ = 31312212004160. Its totient is φ = 31312212004158.

The previous prime is 31312212004153. The next prime is 31312212004189. The reversal of 31312212004159 is 95140021221313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31312212004159 - 2⁴¹ = 29113188748607 is a prime.

It is a super-3 number, since 3×31312212004159³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31312212004153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656106002079 + 15656106002080.

It is an arithmetic number, because the mean of its divisors is an integer number (15656106002080).

Almost surely, 2^{31312212004159} is an apocalyptic number.

31312212004159 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312212004159 is an equidigital number, since it uses as much as digits as its factorization.

31312212004159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 31312212004159 in words is "thirty-one trillion, three hundred twelve billion, two hundred twelve million, four thousand, one hundred fifty-nine".