111100001101111 has 4 divisors (see below), whose sum is σ = 121200001201224. Its totient is φ = 101000001001000.

The previous prime is 111100001101087. The next prime is 111100001101181. The reversal of 111100001101111 is 111101100001111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 111100001101111 - 2¹¹ = 111100001099063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100001101181) 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, 5050000050040 + ... + 5050000050061.

It is an arithmetic number, because the mean of its divisors is an integer number (30300000300306).

Almost surely, 2^{111100001101111} is an apocalyptic number.

111100001101111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111100001101111 is a deficient number, since it is larger than the sum of its proper divisors (10100000100113).

111100001101111 is a wasteful number, since it uses less digits than its factorization.

111100001101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100000100112.

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

Adding to 111100001101111 its reverse (111101100001111), we get a palindrome (222201101102222).

The spelling of 111100001101111 in words is "one hundred eleven trillion, one hundred billion, one million, one hundred one thousand, one hundred eleven".