31112110957 has 2 divisors, whose sum is σ = 31112110958. Its totient is φ = 31112110956.

The previous prime is 31112110951. The next prime is 31112110961. The reversal of 31112110957 is 75901121113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27549692361 + 3562418596 = 165981^2 + 59686^2 .

It is a cyclic number.

It is not a de Polignac number, because 31112110957 - 2³ = 31112110949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31112110951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556055478 + 15556055479.

It is an arithmetic number, because the mean of its divisors is an integer number (15556055479).

Almost surely, 2^31112110957 is an apocalyptic number.

It is an amenable number.

31112110957 is a deficient number, since it is larger than the sum of its proper divisors (1).

31112110957 is an equidigital number, since it uses as much as digits as its factorization.

31112110957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 31.

The spelling of 31112110957 in words is "thirty-one billion, one hundred twelve million, one hundred ten thousand, nine hundred fifty-seven".