313320331 has 4 divisors (see below), whose sum is σ = 313382272. Its totient is φ = 313258392.

The previous prime is 313320323. The next prime is 313320367. The reversal of 313320331 is 133023313.

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 313320331 - 2³ = 313320323 is a prime.

It is a super-2 number, since 2×313320331² = 196339259635899122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313320299 and 313320308.

It is not an unprimeable number, because it can be changed into a prime (313321331) 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, 22635 + ... + 33748.

It is an arithmetic number, because the mean of its divisors is an integer number (78345568).

Almost surely, 2^313320331 is an apocalyptic number.

313320331 is a deficient number, since it is larger than the sum of its proper divisors (61941).

313320331 is an equidigital number, since it uses as much as digits as its factorization.

313320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61940.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 313320331 is about 17700.8567871728. The cubic root of 313320331 is about 679.1976775700.

Adding to 313320331 its reverse (133023313), we get a palindrome (446343644).

The spelling of 313320331 in words is "three hundred thirteen million, three hundred twenty thousand, three hundred thirty-one".