111110111100111 has 16 divisors (see below), whose sum is σ = 154592818684416. Its totient is φ = 70850607042336.

The previous prime is 111110111100101. The next prime is 111110111100127. The reversal of 111110111100111 is 111001111011111.

It is not a de Polignac number, because 111110111100111 - 2²⁷ = 111109976882383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110111100101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22975915 + ... + 27388188.

It is an arithmetic number, because the mean of its divisors is an integer number (9662051167776).

Almost surely, 2^{111110111100111} is an apocalyptic number.

111110111100111 is a deficient number, since it is larger than the sum of its proper divisors (43482707584305).

111110111100111 is a wasteful number, since it uses less digits than its factorization.

111110111100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50396102.

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

Adding to 111110111100111 its reverse (111001111011111), we get a palindrome (222111222111222).

The spelling of 111110111100111 in words is "one hundred eleven trillion, one hundred ten billion, one hundred eleven million, one hundred thousand, one hundred eleven".