111434042120 has 64 divisors (see below), whose sum is σ = 258872716800. Its totient is φ = 43126064640.

The previous prime is 111434042113. The next prime is 111434042123. The reversal of 111434042120 is 21240434111.

111434042120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (111434042123) 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 15 ways as a sum of consecutive naturals, for example, 8200772 + ... + 8214348.

It is an arithmetic number, because the mean of its divisors is an integer number (4044886200).

Almost surely, 2^111434042120 is an apocalyptic number.

111434042120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111434042120 is an abundant number, since it is smaller than the sum of its proper divisors (147438674680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111434042120 is a wasteful number, since it uses less digits than its factorization.

111434042120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20238 (or 20234 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 111434042120 its reverse (21240434111), we get a palindrome (132674476231).

The spelling of 111434042120 in words is "one hundred eleven billion, four hundred thirty-four million, forty-two thousand, one hundred twenty".