313433131 has 24 divisors (see below), whose sum is σ = 375143184. Its totient is φ = 258800640.

The previous prime is 313433119. The next prime is 313433137. The reversal of 313433131 is 131334313.

It is a de Polignac number, because none of the positive numbers 2^k-313433131 is a prime.

It is a super-2 number, since 2×313433131² = 196480655216926322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313433137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156271 + ... + 158263.

It is an arithmetic number, because the mean of its divisors is an integer number (15630966).

Almost surely, 2^313433131 is an apocalyptic number.

313433131 is a deficient number, since it is larger than the sum of its proper divisors (61710053).

313433131 is a wasteful number, since it uses less digits than its factorization.

313433131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079 (or 2050 counting only the distinct ones).

The product of its digits is 972, while the sum is 22.

The square root of 313433131 is about 17704.0427868891. The cubic root of 313433131 is about 679.2791748943.

Adding to 313433131 its reverse (131334313), we get a palindrome (444767444).

The spelling of 313433131 in words is "three hundred thirteen million, four hundred thirty-three thousand, one hundred thirty-one".