111100100111101 has 4 divisors (see below), whose sum is σ = 111100206470400. Its totient is φ = 111099993751804.

The previous prime is 111100100111093. The next prime is 111100100111153. The reversal of 111100100111101 is 101111001001111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111100100111101 - 2³ = 111100100111093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100100111701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51597091 + ... + 53707168.

It is an arithmetic number, because the mean of its divisors is an integer number (27775051617600).

Almost surely, 2^{111100100111101} is an apocalyptic number.

It is an amenable number.

111100100111101 is a deficient number, since it is larger than the sum of its proper divisors (106359299).

111100100111101 is a wasteful number, since it uses less digits than its factorization.

111100100111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106359298.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 111100100111101 its reverse (101111001001111), we get a palindrome (212211101112212).

The spelling of 111100100111101 in words is "one hundred eleven trillion, one hundred billion, one hundred million, one hundred eleven thousand, one hundred one".