111445231120 has 40 divisors (see below), whose sum is σ = 272747543040. Its totient is φ = 42231876480.

The previous prime is 111445231099. The next prime is 111445231141. The reversal of 111445231120 is 21132544111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111445231099) and next prime (111445231141).

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

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, 36658096 + ... + 36661135.

It is an arithmetic number, because the mean of its divisors is an integer number (6818688576).

Almost surely, 2^111445231120 is an apocalyptic number.

111445231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111445231120 is an abundant number, since it is smaller than the sum of its proper divisors (161302311920).

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

111445231120 is a wasteful number, since it uses less digits than its factorization.

111445231120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73319263 (or 73319257 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 111445231120 its reverse (21132544111), we get a palindrome (132577775231).

The spelling of 111445231120 in words is "one hundred eleven billion, four hundred forty-five million, two hundred thirty-one thousand, one hundred twenty".