111100055100 has 72 divisors (see below), whose sum is σ = 322585603200. Its totient is φ = 29521970880.

The previous prime is 111100055089. The next prime is 111100055161. The reversal of 111100055100 is 1550001111.

111100055100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111100055100.

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 23 ways as a sum of consecutive naturals, for example, 569400 + ... + 739199.

It is an arithmetic number, because the mean of its divisors is an integer number (4480355600).

Almost surely, 2^111100055100 is an apocalyptic number.

111100055100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111100055100 is an abundant number, since it is smaller than the sum of its proper divisors (211485548100).

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

111100055100 is a wasteful number, since it uses less digits than its factorization.

111100055100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308899 (or 1308892 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 15.

Adding to 111100055100 its reverse (1550001111), we get a palindrome (112650056211).

The spelling of 111100055100 in words is "one hundred eleven billion, one hundred million, fifty-five thousand, one hundred".