23320321232 has 160 divisors (see below), whose sum is σ = 53794473600. Its totient is φ = 9694992384.

The previous prime is 23320321229. The next prime is 23320321273. The reversal of 23320321232 is 23212302332.

It is a junction number, because it is equal to n+sod(n) for n = 23320321198 and 23320321207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7677218 + ... + 7680254.

It is an arithmetic number, because the mean of its divisors is an integer number (336215460).

Almost surely, 2^23320321232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23320321232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26897236800).

23320321232 is an abundant number, since it is smaller than the sum of its proper divisors (30474152368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23320321232 is a wasteful number, since it uses less digits than its factorization.

23320321232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173 (or 3167 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 23320321232 its reverse (23212302332), we get a palindrome (46532623564).

The spelling of 23320321232 in words is "twenty-three billion, three hundred twenty million, three hundred twenty-one thousand, two hundred thirty-two".