111424043099 has 24 divisors (see below), whose sum is σ = 123083799552. Its totient is φ = 100662542640.

The previous prime is 111424043063. The next prime is 111424043111. The reversal of 111424043099 is 990340424111.

It is a happy number.

It is not a de Polignac number, because 111424043099 - 2²⁴ = 111407265883 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111424043399) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2728022 + ... + 2768564.

It is an arithmetic number, because the mean of its divisors is an integer number (5128491648).

Almost surely, 2^111424043099 is an apocalyptic number.

111424043099 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

111424043099 is a deficient number, since it is larger than the sum of its proper divisors (11659756453).

111424043099 is a wasteful number, since it uses less digits than its factorization.

111424043099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40935 (or 40916 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 111424043099 in words is "one hundred eleven billion, four hundred twenty-four million, forty-three thousand, ninety-nine".