111112110111 has 32 divisors (see below), whose sum is σ = 152625131008. Its totient is φ = 71849773440.

The previous prime is 111112110091. The next prime is 111112110121. The reversal of 111112110111 is 111011211111.

It is not a de Polignac number, because 111112110111 - 2⁵ = 111112110079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112110121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76787190 + ... + 76788636.

It is an arithmetic number, because the mean of its divisors is an integer number (4769535344).

Almost surely, 2^111112110111 is an apocalyptic number.

111112110111 is a deficient number, since it is larger than the sum of its proper divisors (41513020897).

111112110111 is a wasteful number, since it uses less digits than its factorization.

111112110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 111112110111 its reverse (111011211111), we get a palindrome (222123321222).

The spelling of 111112110111 in words is "one hundred eleven billion, one hundred twelve million, one hundred ten thousand, one hundred eleven".