232320013 has 16 divisors (see below), whose sum is σ = 244823040. Its totient is φ = 220224816.

The previous prime is 232320001. The next prime is 232320017. The reversal of 232320013 is 310023232.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232320013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232320017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280506 + ... + 281332.

It is an arithmetic number, because the mean of its divisors is an integer number (15301440).

Almost surely, 2^232320013 is an apocalyptic number.

It is an amenable number.

232320013 is a deficient number, since it is larger than the sum of its proper divisors (12503027).

232320013 is a wasteful number, since it uses less digits than its factorization.

232320013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 232320013 is about 15242.0475330580. The cubic root of 232320013 is about 614.7457587046.

Adding to 232320013 its reverse (310023232), we get a palindrome (542343245).

The spelling of 232320013 in words is "two hundred thirty-two million, three hundred twenty thousand, thirteen".