111400231440 has 160 divisors (see below), whose sum is σ = 348196464000. Its totient is φ = 29461708800.

The previous prime is 111400231421. The next prime is 111400231441. The reversal of 111400231440 is 44132004111.

111400231440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (111400231441) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 27497415 + ... + 27501465.

It is an arithmetic number, because the mean of its divisors is an integer number (2176227900).

Almost surely, 2^111400231440 is an apocalyptic number.

111400231440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111400231440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174098232000).

111400231440 is an abundant number, since it is smaller than the sum of its proper divisors (236796232560).

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

111400231440 is a wasteful number, since it uses less digits than its factorization.

111400231440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4985 (or 4979 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 111400231440 its reverse (44132004111), we get a palindrome (155532235551).

The spelling of 111400231440 in words is "one hundred eleven billion, four hundred million, two hundred thirty-one thousand, four hundred forty".