23110020321 has 16 divisors (see below), whose sum is σ = 32668473600. Its totient is φ = 14490791568.

The previous prime is 23110020299. The next prime is 23110020377. The reversal of 23110020321 is 12302001132.

It is not a de Polignac number, because 23110020321 - 2⁵ = 23110020289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23110020321.

It is not an unprimeable number, because it can be changed into a prime (23110020121) 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 15 ways as a sum of consecutive naturals, for example, 1450491 + ... + 1466336.

It is an arithmetic number, because the mean of its divisors is an integer number (2041779600).

Almost surely, 2^23110020321 is an apocalyptic number.

It is an amenable number.

23110020321 is a deficient number, since it is larger than the sum of its proper divisors (9558453279).

23110020321 is a wasteful number, since it uses less digits than its factorization.

23110020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916988.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 23110020321 its reverse (12302001132), we get a palindrome (35412021453).

The spelling of 23110020321 in words is "twenty-three billion, one hundred ten million, twenty thousand, three hundred twenty-one".