313131004 has 6 divisors (see below), whose sum is σ = 547979264. Its totient is φ = 156565500.

The previous prime is 313130989. The next prime is 313131017. The reversal of 313131004 is 400131313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39141372 + ... + 39141379.

Almost surely, 2^313131004 is an apocalyptic number.

It is an amenable number.

313131004 is a deficient number, since it is larger than the sum of its proper divisors (234848260).

313131004 is a wasteful number, since it uses less digits than its factorization.

313131004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78282755 (or 78282753 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 313131004 is about 17695.5080175733. The cubic root of 313131004 is about 679.0608459684.

Adding to 313131004 its reverse (400131313), we get a palindrome (713262317).

The spelling of 313131004 in words is "three hundred thirteen million, one hundred thirty-one thousand, four".