315310660631 has 2 divisors, whose sum is σ = 315310660632. Its totient is φ = 315310660630.

The previous prime is 315310660619. The next prime is 315310660661. The reversal of 315310660631 is 136066013513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315310660631 - 2¹⁴ = 315310644247 is a prime.

It is a super-2 number, since 2×315310660631² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315310660591 and 315310660600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315310660601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157655330315 + 157655330316.

It is an arithmetic number, because the mean of its divisors is an integer number (157655330316).

Almost surely, 2^315310660631 is an apocalyptic number.

315310660631 is a deficient number, since it is larger than the sum of its proper divisors (1).

315310660631 is an equidigital number, since it uses as much as digits as its factorization.

315310660631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 35.

The spelling of 315310660631 in words is "three hundred fifteen billion, three hundred ten million, six hundred sixty thousand, six hundred thirty-one".