111103202100 has 144 divisors (see below), whose sum is σ = 362774905920. Its totient is φ = 26005324800.

The previous prime is 111103202083. The next prime is 111103202123. The reversal of 111103202100 is 1202301111.

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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 484777 + ... + 676176.

It is an arithmetic number, because the mean of its divisors is an integer number (2519270180).

Almost surely, 2^111103202100 is an apocalyptic number.

111103202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111103202100 is an abundant number, since it is smaller than the sum of its proper divisors (251671703820).

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

111103202100 is a wasteful number, since it uses less digits than its factorization.

111103202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161010 (or 1161003 counting only the distinct ones).

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

Adding to 111103202100 its reverse (1202301111), we get a palindrome (112305503211).

The spelling of 111103202100 in words is "one hundred eleven billion, one hundred three million, two hundred two thousand, one hundred".