111116144 has 20 divisors (see below), whose sum is σ = 217709280. Its totient is φ = 54933120.

The previous prime is 111116087. The next prime is 111116149. The reversal of 111116144 is 441611111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111116149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37592 + ... + 40439.

It is an arithmetic number, because the mean of its divisors is an integer number (10885464).

Almost surely, 2^111116144 is an apocalyptic number.

It is an amenable number.

111116144 is a deficient number, since it is larger than the sum of its proper divisors (106593136).

111116144 is an equidigital number, since it uses as much as digits as its factorization.

111116144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78128 (or 78122 counting only the distinct ones).

The product of its digits is 96, while the sum is 20.

The square root of 111116144 is about 10541.1642620728. The cubic root of 111116144 is about 480.7571153414.

Adding to 111116144 its reverse (441611111), we get a palindrome (552727255).

The spelling of 111116144 in words is "one hundred eleven million, one hundred sixteen thousand, one hundred forty-four".