23201223100 has 144 divisors (see below), whose sum is σ = 55810490400. Its totient is φ = 8301568000.

The previous prime is 23201223053. The next prime is 23201223103. The reversal of 23201223100 is 132210232.

It is a super-2 number, since 2×23201223100² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201223103) 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 47 ways as a sum of consecutive naturals, for example, 26334660 + ... + 26335540.

It is an arithmetic number, because the mean of its divisors is an integer number (387572850).

Almost surely, 2^23201223100 is an apocalyptic number.

23201223100 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 23201223100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27905245200).

23201223100 is an abundant number, since it is smaller than the sum of its proper divisors (32609267300).

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

23201223100 is a wasteful number, since it uses less digits than its factorization.

23201223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264 (or 1257 counting only the distinct ones).

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

Adding to 23201223100 its reverse (132210232), we get a palindrome (23333433332).

The spelling of 23201223100 in words is "twenty-three billion, two hundred one million, two hundred twenty-three thousand, one hundred".