31631130017 has 2 divisors, whose sum is σ = 31631130018. Its totient is φ = 31631130016.

The previous prime is 31631130001. The next prime is 31631130031. The reversal of 31631130017 is 71003113613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20447856016 + 11183274001 = 142996^2 + 105751^2 .

It is a cyclic number.

It is not a de Polignac number, because 31631130017 - 2⁴ = 31631130001 is a prime.

It is not a weakly prime, because it can be changed into another prime (31631130077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15815565008 + 15815565009.

It is an arithmetic number, because the mean of its divisors is an integer number (15815565009).

Almost surely, 2^31631130017 is an apocalyptic number.

It is an amenable number.

31631130017 is a deficient number, since it is larger than the sum of its proper divisors (1).

31631130017 is an equidigital number, since it uses as much as digits as its factorization.

31631130017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 26.

The spelling of 31631130017 in words is "thirty-one billion, six hundred thirty-one million, one hundred thirty thousand, seventeen".