23122013112 has 160 divisors (see below), whose sum is σ = 70738913520. Its totient is φ = 6997916160.

The previous prime is 23122013111. The next prime is 23122013119. The reversal of 23122013112 is 21131022132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23122013111) 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 39 ways as a sum of consecutive naturals, for example, 7817938 + ... + 7820894.

Almost surely, 2^23122013112 is an apocalyptic number.

23122013112 is a gapful number since it is divisible by the number (22) 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 23122013112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35369456760).

23122013112 is an abundant number, since it is smaller than the sum of its proper divisors (47616900408).

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

23122013112 is a wasteful number, since it uses less digits than its factorization.

23122013112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083 (or 4070 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 23122013112 its reverse (21131022132), we get a palindrome (44253035244).

The spelling of 23122013112 in words is "twenty-three billion, one hundred twenty-two million, thirteen thousand, one hundred twelve".