313132331 has 8 divisors (see below), whose sum is σ = 329793600. Its totient is φ = 296489160.

The previous prime is 313132319. The next prime is 313132387. The reversal of 313132331 is 133231313.

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 313132331 - 2²² = 308938027 is a prime.

It is a super-2 number, since 2×313132331² = 196103713434987122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313132531) 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, 44996 + ... + 51486.

It is an arithmetic number, because the mean of its divisors is an integer number (41224200).

Almost surely, 2^313132331 is an apocalyptic number.

313132331 is a deficient number, since it is larger than the sum of its proper divisors (16661269).

313132331 is a wasteful number, since it uses less digits than its factorization.

313132331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9049.

The product of its digits is 486, while the sum is 20.

The square root of 313132331 is about 17695.5455129250. The cubic root of 313132331 is about 679.0618052181.

Adding to 313132331 its reverse (133231313), we get a palindrome (446363644).

The spelling of 313132331 in words is "three hundred thirteen million, one hundred thirty-two thousand, three hundred thirty-one".