12313331001931 has 2 divisors, whose sum is σ = 12313331001932. Its totient is φ = 12313331001930.

The previous prime is 12313331001841. The next prime is 12313331001943. The reversal of 12313331001931 is 13910013331321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12313331001931 is a prime.

It is a super-2 number, since 2×12313331001931² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12313331001893 and 12313331001902.

It is not a weakly prime, because it can be changed into another prime (12313331031931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156665500965 + 6156665500966.

It is an arithmetic number, because the mean of its divisors is an integer number (6156665500966).

Almost surely, 2^{12313331001931} is an apocalyptic number.

12313331001931 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313331001931 is an equidigital number, since it uses as much as digits as its factorization.

12313331001931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 31.

The spelling of 12313331001931 in words is "twelve trillion, three hundred thirteen billion, three hundred thirty-one million, one thousand, nine hundred thirty-one".