323123231 has 4 divisors (see below), whose sum is σ = 323509200. Its totient is φ = 322737264.

The previous prime is 323123189. The next prime is 323123263. The reversal of 323123231 is 132321323.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 323123231 - 2¹⁸ = 322861087 is a prime.

It is a super-2 number, since 2×323123231² = 208817244823758722, 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 (323123531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191726 + ... + 193403.

It is an arithmetic number, because the mean of its divisors is an integer number (80877300).

Almost surely, 2^323123231 is an apocalyptic number.

323123231 is a deficient number, since it is larger than the sum of its proper divisors (385969).

323123231 is an equidigital number, since it uses as much as digits as its factorization.

323123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385968.

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

The square root of 323123231 is about 17975.6288068040. The cubic root of 323123231 is about 686.2084488386.

Adding to 323123231 its reverse (132321323), we get a palindrome (455444554).

It can be divided in two parts, 3231 and 23231, that added together give a palindrome (26462).

The spelling of 323123231 in words is "three hundred twenty-three million, one hundred twenty-three thousand, two hundred thirty-one".