312315258131 has 2 divisors, whose sum is σ = 312315258132. Its totient is φ = 312315258130.

The previous prime is 312315258103. The next prime is 312315258149. The reversal of 312315258131 is 131852513213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312315258131 is a prime.

It is a super-2 number, since 2×312315258131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312315258091 and 312315258100.

It is not a weakly prime, because it can be changed into another prime (312312258131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156157629065 + 156157629066.

It is an arithmetic number, because the mean of its divisors is an integer number (156157629066).

Almost surely, 2^312315258131 is an apocalyptic number.

312315258131 is a deficient number, since it is larger than the sum of its proper divisors (1).

312315258131 is an equidigital number, since it uses as much as digits as its factorization.

312315258131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 35.

The spelling of 312315258131 in words is "three hundred twelve billion, three hundred fifteen million, two hundred fifty-eight thousand, one hundred thirty-one".