323213331 has 16 divisors (see below), whose sum is σ = 492768000. Its totient is φ = 184598688.

The previous prime is 323213309. The next prime is 323213357. The reversal of 323213331 is 133312323.

It is not a de Polignac number, because 323213331 - 2⁷ = 323213203 is a prime.

It is a super-2 number, since 2×323213331² = 208933714672231122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 323213298 and 323213307.

It is not an unprimeable number, because it can be changed into a prime (323213431) 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 15 ways as a sum of consecutive naturals, for example, 72145 + ... + 76493.

It is an arithmetic number, because the mean of its divisors is an integer number (30798000).

Almost surely, 2^323213331 is an apocalyptic number.

323213331 is a deficient number, since it is larger than the sum of its proper divisors (169554669).

323213331 is a wasteful number, since it uses less digits than its factorization.

323213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7898.

The product of its digits is 972, while the sum is 21.

The square root of 323213331 is about 17978.1348031435. The cubic root of 323213331 is about 686.2722239245.

Adding to 323213331 its reverse (133312323), we get a palindrome (456525654).

The spelling of 323213331 in words is "three hundred twenty-three million, two hundred thirteen thousand, three hundred thirty-one".