317513830831 has 4 divisors (see below), whose sum is σ = 319937600664. Its totient is φ = 315090061000.

The previous prime is 317513830801. The next prime is 317513830847. The reversal of 317513830831 is 138038315713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138038315713 = 677 ⋅203897069.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317513830831 is a prime.

It is a super-2 number, since 2×317513830831² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317513830801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1211884720 + ... + 1211884981.

It is an arithmetic number, because the mean of its divisors is an integer number (79984400166).

Almost surely, 2^317513830831 is an apocalyptic number.

317513830831 is a deficient number, since it is larger than the sum of its proper divisors (2423769833).

317513830831 is a wasteful number, since it uses less digits than its factorization.

317513830831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423769832.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 317513830831 in words is "three hundred seventeen billion, five hundred thirteen million, eight hundred thirty thousand, eight hundred thirty-one".