23201320233 has 64 divisors (see below), whose sum is σ = 39154655232. Its totient is φ = 11891577600.

The previous prime is 23201320229. The next prime is 23201320249. The reversal of 23201320233 is 33202310232.

It is not a de Polignac number, because 23201320233 - 2² = 23201320229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23201320253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14655760 + ... + 14657342.

It is an arithmetic number, because the mean of its divisors is an integer number (611791488).

Almost surely, 2^23201320233 is an apocalyptic number.

It is an amenable number.

23201320233 is a deficient number, since it is larger than the sum of its proper divisors (15953334999).

23201320233 is a wasteful number, since it uses less digits than its factorization.

23201320233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 23201320233 its reverse (33202310232), we get a palindrome (56403630465).

The spelling of 23201320233 in words is "twenty-three billion, two hundred one million, three hundred twenty thousand, two hundred thirty-three".