313131304 has 8 divisors (see below), whose sum is σ = 587121210. Its totient is φ = 156565648.

The previous prime is 313131257. The next prime is 313131317. The reversal of 313131304 is 403131313.

It can be written as a sum of positive squares in only one way, i.e., 295908804 + 17222500 = 17202^2 + 4150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19570699 + ... + 19570714.

Almost surely, 2^313131304 is an apocalyptic number.

It is an amenable number.

313131304 is a deficient number, since it is larger than the sum of its proper divisors (273989906).

313131304 is a wasteful number, since it uses less digits than its factorization.

313131304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39141419 (or 39141415 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 313131304 is about 17695.5164942988. The cubic root of 313131304 is about 679.0610628299.

Adding to 313131304 its reverse (403131313), we get a palindrome (716262617).

Subtracting 313131304 from its reverse (403131313), we obtain a palindrome (90000009).

The spelling of 313131304 in words is "three hundred thirteen million, one hundred thirty-one thousand, three hundred four".