111501000144 has 80 divisors (see below), whose sum is σ = 324826104640. Its totient is φ = 36612259200.

The previous prime is 111501000139. The next prime is 111501000151. The reversal of 111501000144 is 441000105111.

It is a super-2 number, since 2×111501000144² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1897207 + ... + 1955094.

It is an arithmetic number, because the mean of its divisors is an integer number (4060326308).

Almost surely, 2^111501000144 is an apocalyptic number.

It is an amenable number.

111501000144 is an abundant number, since it is smaller than the sum of its proper divisors (213325104496).

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

111501000144 is a wasteful number, since it uses less digits than its factorization.

111501000144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852385 (or 3852373 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 111501000144 its reverse (441000105111), we get a palindrome (552501105255).

The spelling of 111501000144 in words is "one hundred eleven billion, five hundred one million, one hundred forty-four", and thus it is an aban number.