31324327890697 has 2 divisors, whose sum is σ = 31324327890698. Its totient is φ = 31324327890696.

The previous prime is 31324327890607. The next prime is 31324327890703. The reversal of 31324327890697 is 79609872342313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30985911117001 + 338416773696 = 5566499^2 + 581736^2 .

It is a cyclic number.

It is not a de Polignac number, because 31324327890697 - 2²⁷ = 31324193672969 is a prime.

It is not a weakly prime, because it can be changed into another prime (31324327890607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15662163945348 + 15662163945349.

It is an arithmetic number, because the mean of its divisors is an integer number (15662163945349).

Almost surely, 2^{31324327890697} is an apocalyptic number.

It is an amenable number.

31324327890697 is a deficient number, since it is larger than the sum of its proper divisors (1).

31324327890697 is an equidigital number, since it uses as much as digits as its factorization.

31324327890697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82301184, while the sum is 64.

The spelling of 31324327890697 in words is "thirty-one trillion, three hundred twenty-four billion, three hundred twenty-seven million, eight hundred ninety thousand, six hundred ninety-seven".