313223231 has 8 divisors (see below), whose sum is σ = 323707104. Its totient is φ = 302874880.

The previous prime is 313223213. The next prime is 313223233. The reversal of 313223231 is 132322313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313223231 - 2²⁶ = 246114367 is a prime.

It is a super-2 number, since 2×313223231² = 196217584876158722, which 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 (313223233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29171 + ... + 38436.

It is an arithmetic number, because the mean of its divisors is an integer number (40463388).

Almost surely, 2^313223231 is an apocalyptic number.

313223231 is a deficient number, since it is larger than the sum of its proper divisors (10483873).

313223231 is a wasteful number, since it uses less digits than its factorization.

313223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67761.

The product of its digits is 648, while the sum is 20.

The square root of 313223231 is about 17698.1137695518. The cubic root of 313223231 is about 679.1275077343.

Adding to 313223231 its reverse (132322313), we get a palindrome (445545544).

The spelling of 313223231 in words is "three hundred thirteen million, two hundred twenty-three thousand, two hundred thirty-one".