31368565317 has 8 divisors (see below), whose sum is σ = 42797422624. Its totient is φ = 20426042448.

The previous prime is 31368565289. The next prime is 31368565363. The reversal of 31368565317 is 71356586313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31368565317 - 2¹⁴ = 31368548933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31368565367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121583458 + ... + 121583715.

It is an arithmetic number, because the mean of its divisors is an integer number (5349677828).

Almost surely, 2^31368565317 is an apocalyptic number.

It is an amenable number.

31368565317 is a deficient number, since it is larger than the sum of its proper divisors (11428857307).

31368565317 is a wasteful number, since it uses less digits than its factorization.

31368565317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243167219.

The product of its digits is 1360800, while the sum is 48.

The spelling of 31368565317 in words is "thirty-one billion, three hundred sixty-eight million, five hundred sixty-five thousand, three hundred seventeen".