323312231 has 8 divisors (see below), whose sum is σ = 352864128. Its totient is φ = 293787000.

The previous prime is 323312221. The next prime is 323312251. The reversal of 323312231 is 132213323.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 323312231 - 2²² = 319117927 is a prime.

It is a super-2 number, since 2×323312231² = 209061597428394722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323312221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25436 + ... + 35966.

It is an arithmetic number, because the mean of its divisors is an integer number (44108016).

Almost surely, 2^323312231 is an apocalyptic number.

323312231 is a deficient number, since it is larger than the sum of its proper divisors (29551897).

323312231 is a wasteful number, since it uses less digits than its factorization.

323312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13333.

The product of its digits is 648, while the sum is 20.

The square root of 323312231 is about 17980.8851561874. The cubic root of 323312231 is about 686.3422142321.

Adding to 323312231 its reverse (132213323), we get a palindrome (455525554).

The spelling of 323312231 in words is "three hundred twenty-three million, three hundred twelve thousand, two hundred thirty-one".