23012123232 has 144 divisors (see below), whose sum is σ = 70395091200. Its totient is φ = 6563112192.

The previous prime is 23012123227. The next prime is 23012123243. The reversal of 23012123232 is 23232121032.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 23012123199 and 23012123208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2813613 + ... + 2821779.

It is an arithmetic number, because the mean of its divisors is an integer number (488854800).

Almost surely, 2^23012123232 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 23012123232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35197545600).

23012123232 is an abundant number, since it is smaller than the sum of its proper divisors (47382967968).

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

23012123232 is a wasteful number, since it uses less digits than its factorization.

23012123232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8793 (or 8778 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23012123232 its reverse (23232121032), we get a palindrome (46244244264).

The spelling of 23012123232 in words is "twenty-three billion, twelve million, one hundred twenty-three thousand, two hundred thirty-two".