111435234912 has 72 divisors (see below), whose sum is σ = 316927008216. Its totient is φ = 37141203456.

The previous prime is 111435234901. The next prime is 111435234917. The reversal of 111435234912 is 219432534111.

111435234912 is a `hidden beast` number, since 1 + 1 + 1 + 43 + 523 + 4 + 91 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111435234917) 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 11 ways as a sum of consecutive naturals, for example, 4499748 + ... + 4524444.

It is an arithmetic number, because the mean of its divisors is an integer number (4401764003).

Almost surely, 2^111435234912 is an apocalyptic number.

111435234912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111435234912 is an abundant number, since it is smaller than the sum of its proper divisors (205491773304).

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

111435234912 is a wasteful number, since it uses less digits than its factorization.

111435234912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40380 (or 40369 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The spelling of 111435234912 in words is "one hundred eleven billion, four hundred thirty-five million, two hundred thirty-four thousand, nine hundred twelve".