313310431 has 4 divisors (see below), whose sum is σ = 358069072. Its totient is φ = 268551792.

The previous prime is 313310407. The next prime is 313310443. The reversal of 313310431 is 134013313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134013313 = 7 ⋅19144759.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313310431 is a prime.

It is a super-2 number, since 2×313310431² = 196326852346811522, 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 = 313310399 and 313310408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313310471) 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, 22379310 + ... + 22379323.

It is an arithmetic number, because the mean of its divisors is an integer number (89517268).

Almost surely, 2^313310431 is an apocalyptic number.

313310431 is a deficient number, since it is larger than the sum of its proper divisors (44758641).

313310431 is an equidigital number, since it uses as much as digits as its factorization.

313310431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44758640.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 313310431 is about 17700.5771374834. The cubic root of 313310431 is about 679.1905239456.

Adding to 313310431 its reverse (134013313), we get a palindrome (447323744).

The spelling of 313310431 in words is "three hundred thirteen million, three hundred ten thousand, four hundred thirty-one".