111440230111 has 16 divisors (see below), whose sum is σ = 134074620160. Its totient is φ = 90485268480.

The previous prime is 111440230091. The next prime is 111440230117. The reversal of 111440230111 is 111032044111.

It is a cyclic number.

It is not a de Polignac number, because 111440230111 - 2⁵ = 111440230079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111440230117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2015740 + ... + 2070286.

It is an arithmetic number, because the mean of its divisors is an integer number (8379663760).

Almost surely, 2^111440230111 is an apocalyptic number.

111440230111 is a deficient number, since it is larger than the sum of its proper divisors (22634390049).

111440230111 is a wasteful number, since it uses less digits than its factorization.

111440230111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69934.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 111440230111 its reverse (111032044111), we get a palindrome (222472274222).

It can be divided in two parts, 111440 and 230111, that added together give a triangular number (341551 = T₈₂₆).

The spelling of 111440230111 in words is "one hundred eleven billion, four hundred forty million, two hundred thirty thousand, one hundred eleven".