313305331 has 4 divisors (see below), whose sum is σ = 314159392. Its totient is φ = 312451272.

The previous prime is 313305323. The next prime is 313305341. The reversal of 313305331 is 133503313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313305331 - 2³ = 313305323 is a prime.

It is a super-2 number, since 2×313305331² = 196320460866039122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313305301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426480 + ... + 427213.

It is an arithmetic number, because the mean of its divisors is an integer number (78539848).

Almost surely, 2^313305331 is an apocalyptic number.

313305331 is a deficient number, since it is larger than the sum of its proper divisors (854061).

313305331 is an equidigital number, since it uses as much as digits as its factorization.

313305331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854060.

The product of its (nonzero) digits is 1215, while the sum is 22.

The square root of 313305331 is about 17700.4330737979. The cubic root of 313305331 is about 679.1868386864.

Adding to 313305331 its reverse (133503313), we get a palindrome (446808644).

The spelling of 313305331 in words is "three hundred thirteen million, three hundred five thousand, three hundred thirty-one".