313433121 has 32 divisors (see below), whose sum is σ = 446404608. Its totient is φ = 195198080.

The previous prime is 313433119. The next prime is 313433137. The reversal of 313433121 is 121334313.

It is a cyclic number.

It is not a de Polignac number, because 313433121 - 2¹ = 313433119 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (313433111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 670930 + ... + 671396.

It is an arithmetic number, because the mean of its divisors is an integer number (13950144).

Almost surely, 2^313433121 is an apocalyptic number.

It is an amenable number.

313433121 is a deficient number, since it is larger than the sum of its proper divisors (132971487).

313433121 is a wasteful number, since it uses less digits than its factorization.

313433121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701.

The product of its digits is 648, while the sum is 21.

The square root of 313433121 is about 17704.0425044677. The cubic root of 313433121 is about 679.2791676702.

Adding to 313433121 its reverse (121334313), we get a palindrome (434767434).

The spelling of 313433121 in words is "three hundred thirteen million, four hundred thirty-three thousand, one hundred twenty-one".