111513404144 has 20 divisors (see below), whose sum is σ = 216572883240. Its totient is φ = 55623627840.

The previous prime is 111513404143. The next prime is 111513404161. The reversal of 111513404144 is 441404315111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111513404143) 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, 8310227 + ... + 8323634.

It is an arithmetic number, because the mean of its divisors is an integer number (10828644162).

Almost surely, 2^111513404144 is an apocalyptic number.

It is an amenable number.

111513404144 is a deficient number, since it is larger than the sum of its proper divisors (105059479096).

111513404144 is a wasteful number, since it uses less digits than its factorization.

111513404144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16634288 (or 16634282 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 111513404144 its reverse (441404315111), we get a palindrome (552917719255).

The spelling of 111513404144 in words is "one hundred eleven billion, five hundred thirteen million, four hundred four thousand, one hundred forty-four".