111042442544 has 40 divisors (see below), whose sum is σ = 238009052160. Its totient is φ = 49762932800.

The previous prime is 111042442513. The next prime is 111042442561. The reversal of 111042442544 is 445244240111.

It is a super-2 number, since 2×111042442544² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111042442544.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4430624 + ... + 4455615.

It is an arithmetic number, because the mean of its divisors is an integer number (5950226304).

Almost surely, 2^111042442544 is an apocalyptic number.

It is an amenable number.

111042442544 is an abundant number, since it is smaller than the sum of its proper divisors (126966609616).

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

111042442544 is a wasteful number, since it uses less digits than its factorization.

111042442544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8886329 (or 8886323 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 32.

Adding to 111042442544 its reverse (445244240111), we get a palindrome (556286682655).

The spelling of 111042442544 in words is "one hundred eleven billion, forty-two million, four hundred forty-two thousand, five hundred forty-four".