313321317 has 16 divisors (see below), whose sum is σ = 429042432. Its totient is φ = 203290560.

The previous prime is 313321313. The next prime is 313321331. The reversal of 313321317 is 713123313.

It is not a de Polignac number, because 313321317 - 2² = 313321313 is a prime.

It is a super-2 number, since 2×313321317² = 196340495373228978, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313321313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19383 + ... + 31659.

It is an arithmetic number, because the mean of its divisors is an integer number (26815152).

Almost surely, 2^313321317 is an apocalyptic number.

It is an amenable number.

313321317 is a deficient number, since it is larger than the sum of its proper divisors (115721115).

313321317 is a wasteful number, since it uses less digits than its factorization.

313321317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12508.

The product of its digits is 1134, while the sum is 24.

The square root of 313321317 is about 17700.8846389100. The cubic root of 313321317 is about 679.1983900338.

The spelling of 313321317 in words is "three hundred thirteen million, three hundred twenty-one thousand, three hundred seventeen".