23320012321 has 4 divisors (see below), whose sum is σ = 23328785200. Its totient is φ = 23311239444.

The previous prime is 23320012319. The next prime is 23320012337. The reversal of 23320012321 is 12321002332.

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 23320012321 - 2¹ = 23320012319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23320012351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4382451 + ... + 4387768.

It is an arithmetic number, because the mean of its divisors is an integer number (5832196300).

Almost surely, 2^23320012321 is an apocalyptic number.

It is an amenable number.

23320012321 is a deficient number, since it is larger than the sum of its proper divisors (8772879).

23320012321 is an equidigital number, since it uses as much as digits as its factorization.

23320012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8772878.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23320012321 its reverse (12321002332), we get a palindrome (35641014653).

The spelling of 23320012321 in words is "twenty-three billion, three hundred twenty million, twelve thousand, three hundred twenty-one".