313320231 has 80 divisors (see below), whose sum is σ = 558125568. Its totient is φ = 171460800.

The previous prime is 313320229. The next prime is 313320247. The reversal of 313320231 is 132023313.

313320231 is a `hidden beast` number, since 313 + 320 + 2 + 31 = 666.

It is not a de Polignac number, because 313320231 - 2¹ = 313320229 is a prime.

It is a super-2 number, since 2×313320231² = 196339134307786722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313321231) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1730961 + ... + 1731141.

Almost surely, 2^313320231 is an apocalyptic number.

313320231 is a deficient number, since it is larger than the sum of its proper divisors (244805337).

313320231 is a wasteful number, since it uses less digits than its factorization.

313320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 313320231 is about 17700.8539624505. The cubic root of 313320231 is about 679.1976053119.

Adding to 313320231 its reverse (132023313), we get a palindrome (445343544).

The spelling of 313320231 in words is "three hundred thirteen million, three hundred twenty thousand, two hundred thirty-one".