232331321 has 4 divisors (see below), whose sum is σ = 236269200. Its totient is φ = 228393444.

The previous prime is 232331317. The next prime is 232331339. The reversal of 232331321 is 123133232.

232331321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 232331321 - 2² = 232331317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232331293 and 232331302.

It is not an unprimeable number, because it can be changed into a prime (232331311) 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, 1968851 + ... + 1968968.

It is an arithmetic number, because the mean of its divisors is an integer number (59067300).

Almost surely, 2^232331321 is an apocalyptic number.

It is an amenable number.

232331321 is a deficient number, since it is larger than the sum of its proper divisors (3937879).

232331321 is an equidigital number, since it uses as much as digits as its factorization.

232331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937878.

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

The square root of 232331321 is about 15242.4184760818. The cubic root of 232331321 is about 614.7557326369.

Adding to 232331321 its reverse (123133232), we get a palindrome (355464553).

The spelling of 232331321 in words is "two hundred thirty-two million, three hundred thirty-one thousand, three hundred twenty-one".