23325521128 has 64 divisors (see below), whose sum is σ = 53855948160. Its totient is φ = 9222909696.

The previous prime is 23325521117. The next prime is 23325521129. The reversal of 23325521128 is 82112552332.

It is a junction number, because it is equal to n+sod(n) for n = 23325521093 and 23325521102.

It is not an unprimeable number, because it can be changed into a prime (23325521129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1621375 + ... + 1635697.

It is an arithmetic number, because the mean of its divisors is an integer number (841499190).

Almost surely, 2^23325521128 is an apocalyptic number.

23325521128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23325521128 is an abundant number, since it is smaller than the sum of its proper divisors (30530427032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23325521128 is a wasteful number, since it uses less digits than its factorization.

23325521128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16586 (or 16582 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The spelling of 23325521128 in words is "twenty-three billion, three hundred twenty-five million, five hundred twenty-one thousand, one hundred twenty-eight".