23201111100 has 36 divisors (see below), whose sum is σ = 67128548984. Its totient is φ = 6186962880.

The previous prime is 23201111093. The next prime is 23201111159. The reversal of 23201111100 is 111110232.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 38668219 + ... + 38668818.

Almost surely, 2^23201111100 is an apocalyptic number.

23201111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23201111100 is an abundant number, since it is smaller than the sum of its proper divisors (43927437884).

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

23201111100 is a wasteful number, since it uses less digits than its factorization.

23201111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77337054 (or 77337047 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 23201111100 its reverse (111110232), we get a palindrome (23312221332).

The spelling of 23201111100 in words is "twenty-three billion, two hundred one million, one hundred eleven thousand, one hundred".