111103400144 has 80 divisors (see below), whose sum is σ = 247531776000. Its totient is φ = 47777765760.

The previous prime is 111103400117. The next prime is 111103400153. The reversal of 111103400144 is 441004301111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2448737 + ... + 2493695.

It is an arithmetic number, because the mean of its divisors is an integer number (3094147200).

Almost surely, 2^111103400144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111103400144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123765888000).

111103400144 is an abundant number, since it is smaller than the sum of its proper divisors (136428375856).

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

111103400144 is a wasteful number, since it uses less digits than its factorization.

111103400144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45736 (or 45730 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 111103400144 its reverse (441004301111), we get a palindrome (552107701255).

The spelling of 111103400144 in words is "one hundred eleven billion, one hundred three million, four hundred thousand, one hundred forty-four".