331313123 has 12 divisors (see below), whose sum is σ = 342185760. Its totient is φ = 320732256.

The previous prime is 331313117. The next prime is 331313141. The reversal of 331313123 is 321313133.

It is not a de Polignac number, because 331313123 - 2²⁰ = 330264547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331313095 and 331313104.

It is not an unprimeable number, because it can be changed into a prime (331313113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221165 + ... + 222657.

It is an arithmetic number, because the mean of its divisors is an integer number (28515480).

Almost surely, 2^331313123 is an apocalyptic number.

331313123 is a deficient number, since it is larger than the sum of its proper divisors (10872637).

331313123 is an equidigital number, since it uses as much as digits as its factorization.

331313123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678 (or 1625 counting only the distinct ones).

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

The square root of 331313123 is about 18202.0087627712. The cubic root of 331313123 is about 691.9576993923.

Adding to 331313123 its reverse (321313133), we get a palindrome (652626256).

The spelling of 331313123 in words is "three hundred thirty-one million, three hundred thirteen thousand, one hundred twenty-three".