23112000021 has 16 divisors (see below), whose sum is σ = 35594952768. Its totient is φ = 13183315200.

The previous prime is 23111999957. The next prime is 23112000047. The reversal of 23112000021 is 12000021132.

It is not a de Polignac number, because 23112000021 - 2⁶ = 23111999957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23111999970 and 23112000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23112000521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20598370 + ... + 20599491.

It is an arithmetic number, because the mean of its divisors is an integer number (2224684548).

Almost surely, 2^23112000021 is an apocalyptic number.

It is an amenable number.

23112000021 is a deficient number, since it is larger than the sum of its proper divisors (12482952747).

23112000021 is a wasteful number, since it uses less digits than its factorization.

23112000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41197892.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 23112000021 its reverse (12000021132), we get a palindrome (35112021153).

The spelling of 23112000021 in words is "twenty-three billion, one hundred twelve million, twenty-one", and thus it is an aban number.