111232100100 has 72 divisors (see below), whose sum is σ = 351088966368. Its totient is φ = 26965356800.

The previous prime is 111232100071. The next prime is 111232100101. The reversal of 111232100100 is 1001232111.

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

It is not an unprimeable number, because it can be changed into a prime (111232100101) 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 23 ways as a sum of consecutive naturals, for example, 16850049 + ... + 16856648.

It is an arithmetic number, because the mean of its divisors is an integer number (4876235644).

Almost surely, 2^111232100100 is an apocalyptic number.

111232100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111232100100 is an abundant number, since it is smaller than the sum of its proper divisors (239856866268).

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

111232100100 is a wasteful number, since it uses less digits than its factorization.

111232100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33706725 (or 33706718 counting only the distinct ones).

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

Adding to 111232100100 its reverse (1001232111), we get a palindrome (112233332211).

The spelling of 111232100100 in words is "one hundred eleven billion, two hundred thirty-two million, one hundred thousand, one hundred".