111100011111011 has 16 divisors (see below), whose sum is σ = 119924835167424. Its totient is φ = 102315112861824.

The previous prime is 111100011110969. The next prime is 111100011111049. The reversal of 111100011111011 is 110111110001111.

It is a cyclic number.

It is not a de Polignac number, because 111100011111011 - 2²⁶ = 111099944002147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111100011110983 and 111100011111001.

It is not an unprimeable number, because it can be changed into a prime (111100011111911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20613341 + ... + 25438353.

It is an arithmetic number, because the mean of its divisors is an integer number (7495302197964).

Almost surely, 2^{111100011111011} is an apocalyptic number.

111100011111011 is a deficient number, since it is larger than the sum of its proper divisors (8824824056413).

111100011111011 is a wasteful number, since it uses less digits than its factorization.

111100011111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4829150.

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

Adding to 111100011111011 its reverse (110111110001111), we get a palindrome (221211121112122).

The spelling of 111100011111011 in words is "one hundred eleven trillion, one hundred billion, eleven million, one hundred eleven thousand, eleven".