111100000111111 has 32 divisors (see below), whose sum is σ = 131944490044416. Its totient is φ = 92398098816000.

The previous prime is 111100000111109. The next prime is 111100000111171. The reversal of 111100000111111 is 111111000001111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111100000111111 - 2¹ = 111100000111109 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100000111171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24657805 + ... + 28813318.

It is an arithmetic number, because the mean of its divisors is an integer number (4123265313888).

Almost surely, 2^{111100000111111} is an apocalyptic number.

111100000111111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111100000111111 is a deficient number, since it is larger than the sum of its proper divisors (20844489933305).

111100000111111 is a wasteful number, since it uses less digits than its factorization.

111100000111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53471463.

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

Adding to 111100000111111 its reverse (111111000001111), we get a palindrome (222211000112222).

It can be divided in two parts, 1111000001111 and 11, that multiplied together give a palindrome (12221000012221).

The spelling of 111100000111111 in words is "one hundred eleven trillion, one hundred billion, one hundred eleven thousand, one hundred eleven".