23302063128521 has 16 divisors (see below), whose sum is σ = 23714260252800. Its totient is φ = 22893644435328.

The previous prime is 23302063128511. The next prime is 23302063128559. The reversal of 23302063128521 is 12582136020332.

It is not a de Polignac number, because 23302063128521 - 2⁶ = 23302063128457 is a prime.

It is a super-2 number, since 2×23302063128521² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23302063128511) 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, 23056550 + ... + 24045968.

It is an arithmetic number, because the mean of its divisors is an integer number (1482141265800).

Almost surely, 2^{23302063128521} is an apocalyptic number.

It is an amenable number.

23302063128521 is a deficient number, since it is larger than the sum of its proper divisors (412197124279).

23302063128521 is a wasteful number, since it uses less digits than its factorization.

23302063128521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991328.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 23302063128521 its reverse (12582136020332), we get a palindrome (35884199148853).

The spelling of 23302063128521 in words is "twenty-three trillion, three hundred two billion, sixty-three million, one hundred twenty-eight thousand, five hundred twenty-one".