111100000011111 has 12 divisors (see below), whose sum is σ = 164815015031992. Its totient is φ = 72064864871856.

The previous prime is 111100000011109. The next prime is 111100000011127. The reversal of 111100000011111 is 111110000001111.

It is not a de Polignac number, because 111100000011111 - 2¹ = 111100000011109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

111100000011111 is a modest number, since divided by 11111 gives 11110 as remainder.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 111100000011093 and 111100000011102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100000011101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166816816501 + ... + 166816817166.

Almost surely, 2^{111100000011111} is an apocalyptic number.

111100000011111 is a deficient number, since it is larger than the sum of its proper divisors (53715015020881).

111100000011111 is a wasteful number, since it uses less digits than its factorization.

111100000011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333633633710 (or 333633633707 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 111100000011111 its reverse (111110000001111), we get a palindrome (222210000012222).

The spelling of 111100000011111 in words is "one hundred eleven trillion, one hundred billion, eleven thousand, one hundred eleven".