23130132021 has 24 divisors (see below), whose sum is σ = 35290002176. Its totient is φ = 14575619520.

The previous prime is 23130132019. The next prime is 23130132031. The reversal of 23130132021 is 12023103132.

23130132021 is a `hidden beast` number, since 23 + 1 + 301 + 320 + 21 = 666.

It is not a de Polignac number, because 23130132021 - 2¹ = 23130132019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23130131985 and 23130132003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130132031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 952000 + ... + 975993.

Almost surely, 2^23130132021 is an apocalyptic number.

It is an amenable number.

23130132021 is a deficient number, since it is larger than the sum of its proper divisors (12159870155).

23130132021 is a wasteful number, since it uses less digits than its factorization.

23130132021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928073 (or 1928070 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23130132021 its reverse (12023103132), we get a palindrome (35153235153).

The spelling of 23130132021 in words is "twenty-three billion, one hundred thirty million, one hundred thirty-two thousand, twenty-one".