111100110111101 has 4 divisors (see below), whose sum is σ = 111110257177500. Its totient is φ = 111089963044704.

The previous prime is 111100110111061. The next prime is 111100110111113. The reversal of 111100110111101 is 101111011001111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36420681852025 + 74679428259076 = 6034955^2 + 8641726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111100110111101 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 (111100110111131) 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, 5073516776 + ... + 5073538673.

It is an arithmetic number, because the mean of its divisors is an integer number (27777564294375).

Almost surely, 2^{111100110111101} is an apocalyptic number.

It is an amenable number.

111100110111101 is a deficient number, since it is larger than the sum of its proper divisors (10147066399).

111100110111101 is a wasteful number, since it uses less digits than its factorization.

111100110111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10147066398.

The product of its (nonzero) digits is 1, while the sum is 11.

Adding to 111100110111101 its reverse (101111011001111), we get a palindrome (212211121112212).

The spelling of 111100110111101 in words is "one hundred eleven trillion, one hundred billion, one hundred ten million, one hundred eleven thousand, one hundred one".