111100000100 has 72 divisors (see below), whose sum is σ = 247880967936. Its totient is φ = 43195680000.

The previous prime is 111100000061. The next prime is 111100000103. The reversal of 111100000100 is 1000001111.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is not an unprimeable number, because it can be changed into a prime (111100000103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1061105 + ... + 1161095.

Almost surely, 2^111100000100 is an apocalyptic number.

111100000100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111100000100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123940483968).

111100000100 is an abundant number, since it is smaller than the sum of its proper divisors (136780967836).

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

111100000100 is a wasteful number, since it uses less digits than its factorization.

111100000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100317 (or 100310 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 5.

Adding to 111100000100 its reverse (1000001111), we get a palindrome (112100001211).

The spelling of 111100000100 in words is "one hundred eleven billion, one hundred million, one hundred", and thus it is an aban number.