31130002957 has 2 divisors, whose sum is σ = 31130002958. Its totient is φ = 31130002956.

The previous prime is 31130002921. The next prime is 31130002987. The reversal of 31130002957 is 75920003113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22075719241 + 9054283716 = 148579^2 + 95154^2 .

It is a cyclic number.

It is not a de Polignac number, because 31130002957 - 2²⁷ = 30995785229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31130002987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15565001478 + 15565001479.

It is an arithmetic number, because the mean of its divisors is an integer number (15565001479).

Almost surely, 2^31130002957 is an apocalyptic number.

It is an amenable number.

31130002957 is a deficient number, since it is larger than the sum of its proper divisors (1).

31130002957 is an equidigital number, since it uses as much as digits as its factorization.

31130002957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 31.

The spelling of 31130002957 in words is "thirty-one billion, one hundred thirty million, two thousand, nine hundred fifty-seven".