111711113892 has 36 divisors (see below), whose sum is σ = 322720996416. Its totient is φ = 31917461040.

The previous prime is 111711113879. The next prime is 111711113929. The reversal of 111711113892 is 298311117111.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221648784 + ... + 221649287.

Almost surely, 2^111711113892 is an apocalyptic number.

111711113892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111711113892 is an abundant number, since it is smaller than the sum of its proper divisors (211009882524).

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

111711113892 is a wasteful number, since it uses less digits than its factorization.

111711113892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443298088 (or 443298083 counting only the distinct ones).

The product of its digits is 3024, while the sum is 36.

The spelling of 111711113892 in words is "one hundred eleven billion, seven hundred eleven million, one hundred thirteen thousand, eight hundred ninety-two".