23113123021 has 8 divisors (see below), whose sum is σ = 24385800320. Its totient is φ = 21846065472.

The previous prime is 23113123013. The next prime is 23113123057. The reversal of 23113123021 is 12032131132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23113123021 - 2³ = 23113123013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23113123021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23113123001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1396485 + ... + 1412938.

It is an arithmetic number, because the mean of its divisors is an integer number (3048225040).

Almost surely, 2^23113123021 is an apocalyptic number.

It is an amenable number.

23113123021 is a deficient number, since it is larger than the sum of its proper divisors (1272677299).

23113123021 is a wasteful number, since it uses less digits than its factorization.

23113123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809875.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23113123021 its reverse (12032131132), we get a palindrome (35145254153).

The spelling of 23113123021 in words is "twenty-three billion, one hundred thirteen million, one hundred twenty-three thousand, twenty-one".