312131414233291 has 2 divisors, whose sum is σ = 312131414233292. Its totient is φ = 312131414233290.

The previous prime is 312131414233277. The next prime is 312131414233297. The reversal of 312131414233291 is 192332414131213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312131414233291 - 2¹⁵ = 312131414200523 is a prime.

It is a super-2 number, since 2×312131414233291² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (312131414233297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156065707116645 + 156065707116646.

It is an arithmetic number, because the mean of its divisors is an integer number (156065707116646).

Almost surely, 2^{312131414233291} is an apocalyptic number.

312131414233291 is a deficient number, since it is larger than the sum of its proper divisors (1).

312131414233291 is an equidigital number, since it uses as much as digits as its factorization.

312131414233291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The spelling of 312131414233291 in words is "three hundred twelve trillion, one hundred thirty-one billion, four hundred fourteen million, two hundred thirty-three thousand, two hundred ninety-one".