232320321 has 12 divisors (see below), whose sum is σ = 335750272. Its totient is φ = 154798776.

The previous prime is 232320313. The next prime is 232320323. The reversal of 232320321 is 123023232.

It is a happy number.

232320321 is a `hidden beast` number, since 2 + 323 + 20 + 321 = 666.

It is not a de Polignac number, because 232320321 - 2³ = 232320313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232320294 and 232320303.

It is not an unprimeable number, because it can be changed into a prime (232320323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14940 + ... + 26226.

Almost surely, 2^232320321 is an apocalyptic number.

It is an amenable number.

232320321 is a deficient number, since it is larger than the sum of its proper divisors (103429951).

232320321 is a wasteful number, since it uses less digits than its factorization.

232320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13580 (or 13577 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 232320321 is about 15242.0576366841. The cubic root of 232320321 is about 614.7460303724.

Adding to 232320321 its reverse (123023232), we get a palindrome (355343553).

The spelling of 232320321 in words is "two hundred thirty-two million, three hundred twenty thousand, three hundred twenty-one".