111100111111101 has 24 divisors (see below), whose sum is σ = 177877202260224. Its totient is φ = 61437849459840.

The previous prime is 111100111111063. The next prime is 111100111111111. The reversal of 111100111111101 is 101111111001111.

It is not a de Polignac number, because 111100111111101 - 2¹⁷ = 111100110980029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100111111111) 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, 12190044940 + ... + 12190054053.

It is an arithmetic number, because the mean of its divisors is an integer number (7411550094176).

Almost surely, 2^{111100111111101} is an apocalyptic number.

It is an amenable number.

111100111111101 is a deficient number, since it is larger than the sum of its proper divisors (66777091149123).

111100111111101 is a wasteful number, since it uses less digits than its factorization.

111100111111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24380099041 (or 24380099034 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 12.

Adding to 111100111111101 its reverse (101111111001111), we get a palindrome (212211222112212).

The spelling of 111100111111101 in words is "one hundred eleven trillion, one hundred billion, one hundred eleven million, one hundred eleven thousand, one hundred one".