23057365221 has 24 divisors (see below), whose sum is σ = 37314791904. Its totient is φ = 13596478560.

The previous prime is 23057365213. The next prime is 23057365229. The reversal of 23057365221 is 12256375032.

23057365221 is a `hidden beast` number, since 2 + 3 + 0 + 573 + 65 + 2 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (23057365213) and next prime (23057365229).

It is not a de Polignac number, because 23057365221 - 2³ = 23057365213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23057365229) 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, 3143671 + ... + 3150996.

It is an arithmetic number, because the mean of its divisors is an integer number (1554782996).

Almost surely, 2^23057365221 is an apocalyptic number.

It is an amenable number.

23057365221 is a deficient number, since it is larger than the sum of its proper divisors (14257426683).

23057365221 is a wasteful number, since it uses less digits than its factorization.

23057365221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6294721 (or 6294718 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 23057365221 in words is "twenty-three billion, fifty-seven million, three hundred sixty-five thousand, two hundred twenty-one".