31311321312367 has 2 divisors, whose sum is σ = 31311321312368. Its totient is φ = 31311321312366.

The previous prime is 31311321312281. The next prime is 31311321312391. The reversal of 31311321312367 is 76321312311313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31311321312367 - 2³⁵ = 31276961573999 is a prime.

It is a super-2 number, since 2×31311321312367² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31311321312067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655660656183 + 15655660656184.

It is an arithmetic number, because the mean of its divisors is an integer number (15655660656184).

Almost surely, 2^{31311321312367} is an apocalyptic number.

31311321312367 is a deficient number, since it is larger than the sum of its proper divisors (1).

31311321312367 is an equidigital number, since it uses as much as digits as its factorization.

31311321312367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 37.

The spelling of 31311321312367 in words is "thirty-one trillion, three hundred eleven billion, three hundred twenty-one million, three hundred twelve thousand, three hundred sixty-seven".