23312301021 has 24 divisors (see below), whose sum is σ = 34963119360. Its totient is φ = 14950202400.

The previous prime is 23312301013. The next prime is 23312301043. The reversal of 23312301021 is 12010321332.

23312301021 is a `hidden beast` number, since 2 + 331 + 230 + 102 + 1 = 666.

It is not a de Polignac number, because 23312301021 - 2³ = 23312301013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23312300985 and 23312301003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23312301071) 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, 94065 + ... + 235526.

It is an arithmetic number, because the mean of its divisors is an integer number (1456796640).

Almost surely, 2^23312301021 is an apocalyptic number.

It is an amenable number.

23312301021 is a deficient number, since it is larger than the sum of its proper divisors (11650818339).

23312301021 is a wasteful number, since it uses less digits than its factorization.

23312301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329897 (or 329894 counting only the distinct ones).

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

Adding to 23312301021 its reverse (12010321332), we get a palindrome (35322622353).

The spelling of 23312301021 in words is "twenty-three billion, three hundred twelve million, three hundred one thousand, twenty-one".