23008898521 has 12 divisors (see below), whose sum is σ = 27752722752. Its totient is φ = 18683915544.

The previous prime is 23008898519. The next prime is 23008898531. The reversal of 23008898521 is 12589880032.

It is not a de Polignac number, because 23008898521 - 2¹ = 23008898519 is a prime.

It is a super-2 number, since 2×23008898521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23008898531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4550085 + ... + 4555138.

It is an arithmetic number, because the mean of its divisors is an integer number (2312726896).

Almost surely, 2^23008898521 is an apocalyptic number.

It is an amenable number.

23008898521 is a deficient number, since it is larger than the sum of its proper divisors (4743824231).

23008898521 is an equidigital number, since it uses as much as digits as its factorization.

23008898521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9105268 (or 9105249 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 23008898521 in words is "twenty-three billion, eight million, eight hundred ninety-eight thousand, five hundred twenty-one".