23521251132 has 72 divisors (see below), whose sum is σ = 60939038160. Its totient is φ = 7645121280.

The previous prime is 23521251109. The next prime is 23521251137. The reversal of 23521251132 is 23115212532.

23521251132 is a `hidden beast` number, since 2 + 3 + 521 + 2 + 5 + 1 + 132 = 666.

It is a super-2 number, since 2×23521251132² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23521251096 and 23521251105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23521251137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4158018 + ... + 4163670.

It is an arithmetic number, because the mean of its divisors is an integer number (846375530).

Almost surely, 2^23521251132 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 23521251132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30469519080).

23521251132 is an abundant number, since it is smaller than the sum of its proper divisors (37417787028).

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

23521251132 is a wasteful number, since it uses less digits than its factorization.

23521251132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8523 (or 8518 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

Adding to 23521251132 its reverse (23115212532), we get a palindrome (46636463664).

The spelling of 23521251132 in words is "twenty-three billion, five hundred twenty-one million, two hundred fifty-one thousand, one hundred thirty-two".