111611112 has 16 divisors (see below), whose sum is σ = 279027840. Its totient is φ = 37203696.

The previous prime is 111611099. The next prime is 111611113. The reversal of 111611112 is 211116111.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 111611091 and 111611100.

It is not an unprimeable number, because it can be changed into a prime (111611113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2325208 + ... + 2325255.

It is an arithmetic number, because the mean of its divisors is an integer number (17439240).

Almost surely, 2^111611112 is an apocalyptic number.

111611112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111611112 is an abundant number, since it is smaller than the sum of its proper divisors (167416728).

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

111611112 is a wasteful number, since it uses less digits than its factorization.

111611112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4650472 (or 4650468 counting only the distinct ones).

The product of its digits is 12, while the sum is 15.

The square root of 111611112 is about 10564.6160365628. The cubic root of 111611112 is about 481.4699038414.

Adding to 111611112 its reverse (211116111), we get a palindrome (322727223).

The spelling of 111611112 in words is "one hundred eleven million, six hundred eleven thousand, one hundred twelve".