312915729131 has 2 divisors, whose sum is σ = 312915729132. Its totient is φ = 312915729130.

The previous prime is 312915729121. The next prime is 312915729151. The reversal of 312915729131 is 131927519213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312915729131 - 2¹⁰ = 312915728107 is a prime.

It is a super-2 number, since 2×312915729131² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (312915729121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156457864565 + 156457864566.

It is an arithmetic number, because the mean of its divisors is an integer number (156457864566).

Almost surely, 2^312915729131 is an apocalyptic number.

312915729131 is a deficient number, since it is larger than the sum of its proper divisors (1).

312915729131 is an equidigital number, since it uses as much as digits as its factorization.

312915729131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 44.

The spelling of 312915729131 in words is "three hundred twelve billion, nine hundred fifteen million, seven hundred twenty-nine thousand, one hundred thirty-one".