23012131100 has 72 divisors (see below), whose sum is σ = 57480904320. Its totient is φ = 7833078720.

The previous prime is 23012130949. The next prime is 23012131151. The reversal of 23012131100 is 113121032.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 20954 + ... + 215553.

Almost surely, 2^23012131100 is an apocalyptic number.

23012131100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23012131100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28740452160).

23012131100 is an abundant number, since it is smaller than the sum of its proper divisors (34468773220).

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

23012131100 is a wasteful number, since it uses less digits than its factorization.

23012131100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236667 (or 236660 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 23012131100 its reverse (113121032), we get a palindrome (23125252132).

The spelling of 23012131100 in words is "twenty-three billion, twelve million, one hundred thirty-one thousand, one hundred".