23201321023 has 4 divisors (see below), whose sum is σ = 23298397920. Its totient is φ = 23104244128.

The previous prime is 23201320981. The next prime is 23201321027. The reversal of 23201321023 is 32012310232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23201321023 - 2⁹ = 23201320511 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 (23201321027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48538090 + ... + 48538567.

It is an arithmetic number, because the mean of its divisors is an integer number (5824599480).

Almost surely, 2^23201321023 is an apocalyptic number.

23201321023 is a deficient number, since it is larger than the sum of its proper divisors (97076897).

23201321023 is an equidigital number, since it uses as much as digits as its factorization.

23201321023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97076896.

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

Adding to 23201321023 its reverse (32012310232), we get a palindrome (55213631255).

The spelling of 23201321023 in words is "twenty-three billion, two hundred one million, three hundred twenty-one thousand, twenty-three".