23122031200 has 72 divisors (see below), whose sum is σ = 56470213800. Its totient is φ = 9244953600.

The previous prime is 23122031189. The next prime is 23122031227. The reversal of 23122031200 is 213022132.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2634820 + ... + 2643580.

It is an arithmetic number, because the mean of its divisors is an integer number (784308525).

Almost surely, 2^23122031200 is an apocalyptic number.

23122031200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23122031200 is an abundant number, since it is smaller than the sum of its proper divisors (33348182600).

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

23122031200 is a wasteful number, since it uses less digits than its factorization.

23122031200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12080 (or 12067 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23122031200 its reverse (213022132), we get a palindrome (23335053332).

The spelling of 23122031200 in words is "twenty-three billion, one hundred twenty-two million, thirty-one thousand, two hundred".