23112574512 has 320 divisors, whose sum is σ = 67174272000. Its totient is φ = 6820982784.

The previous prime is 23112574493. The next prime is 23112574523. The reversal of 23112574512 is 21547521132.

It is a happy number.

It is a super-2 number, since 2×23112574512² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 129120439 + ... + 129120617.

It is an arithmetic number, because the mean of its divisors is an integer number (209919600).

Almost surely, 2^23112574512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23112574512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33587136000).

23112574512 is an abundant number, since it is smaller than the sum of its proper divisors (44061697488).

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

23112574512 is a wasteful number, since it uses less digits than its factorization.

23112574512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 382 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The spelling of 23112574512 in words is "twenty-three billion, one hundred twelve million, five hundred seventy-four thousand, five hundred twelve".