111111113332100 has 72 divisors (see below), whose sum is σ = 275835883790208. Its totient is φ = 38056484563200.

The previous prime is 111111113332001. The next prime is 111111113332237. The reversal of 111111113332100 is 1233311111111.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 80049521 + ... + 81425720.

Almost surely, 2^{111111113332100} is an apocalyptic number.

111111113332100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111111113332100 is an abundant number, since it is smaller than the sum of its proper divisors (164724770458108).

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

111111113332100 is a wasteful number, since it uses less digits than its factorization.

111111113332100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161476245 (or 161476238 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 20.

Adding to 111111113332100 its reverse (1233311111111), we get a palindrome (112344424443211).

The spelling of 111111113332100 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred thirteen million, three hundred thirty-two thousand, one hundred".