100111232100 has 72 divisors (see below), whose sum is σ = 315987463008. Its totient is φ = 24269388800.

The previous prime is 100111232099. The next prime is 100111232131. The reversal of 100111232100 is 1232111001.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15165069 + ... + 15171668.

It is an arithmetic number, because the mean of its divisors is an integer number (4388714764).

Almost surely, 2^100111232100 is an apocalyptic number.

100111232100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100111232100 is an abundant number, since it is smaller than the sum of its proper divisors (215876230908).

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

100111232100 is a wasteful number, since it uses less digits than its factorization.

100111232100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30336765 (or 30336758 counting only the distinct ones).

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

Adding to 100111232100 its reverse (1232111001), we get a palindrome (101343343101).

The spelling of 100111232100 in words is "one hundred billion, one hundred eleven million, two hundred thirty-two thousand, one hundred".