111420011144 has 32 divisors (see below), whose sum is σ = 224996630040. Its totient is φ = 51421440000.

The previous prime is 111420011141. The next prime is 111420011191. The reversal of 111420011144 is 441110024111.

It can be written as a sum of positive squares in 4 ways, for example, as 105730326244 + 5689684900 = 325162^2 + 75430^2 .

It is not an unprimeable number, because it can be changed into a prime (111420011141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2892974 + ... + 2931234.

Almost surely, 2^111420011144 is an apocalyptic number.

It is an amenable number.

111420011144 is an abundant number, since it is smaller than the sum of its proper divisors (113576618896).

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

111420011144 is a wasteful number, since it uses less digits than its factorization.

111420011144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66281 (or 66277 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111420011144 its reverse (441110024111), we get a palindrome (552530035255).

The spelling of 111420011144 in words is "one hundred eleven billion, four hundred twenty million, eleven thousand, one hundred forty-four".