631813103376713 has 2 divisors, whose sum is σ = 631813103376714. Its totient is φ = 631813103376712.

The previous prime is 631813103376709. The next prime is 631813103376731. The reversal of 631813103376713 is 317673301318136.

Together with next prime (631813103376731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503314283400889 + 128498819975824 = 22434667^2 + 11335732^2 .

It is a cyclic number.

It is not a de Polignac number, because 631813103376713 - 2² = 631813103376709 is a prime.

It is not a weakly prime, because it can be changed into another prime (631813103376773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315906551688356 + 315906551688357.

It is an arithmetic number, because the mean of its divisors is an integer number (315906551688357).

Almost surely, 2^{631813103376713} is an apocalyptic number.

It is an amenable number.

631813103376713 is a deficient number, since it is larger than the sum of its proper divisors (1).

631813103376713 is an equidigital number, since it uses as much as digits as its factorization.

631813103376713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 53.

The spelling of 631813103376713 in words is "six hundred thirty-one trillion, eight hundred thirteen billion, one hundred three million, three hundred seventy-six thousand, seven hundred thirteen".