111443140 has 48 divisors (see below), whose sum is σ = 243210240. Its totient is φ = 42848640.

The previous prime is 111443131. The next prime is 111443183. The reversal of 111443140 is 41344111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106741 + ... + 107779.

It is an arithmetic number, because the mean of its divisors is an integer number (5066880).

Almost surely, 2^111443140 is an apocalyptic number.

111443140 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 111443140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121605120).

111443140 is an abundant number, since it is smaller than the sum of its proper divisors (131767100).

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

111443140 is a wasteful number, since it uses less digits than its factorization.

111443140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 111443140 is about 10556.6632985996. The cubic root of 111443140 is about 481.2282490872.

Adding to 111443140 its reverse (41344111), we get a palindrome (152787251).

The spelling of 111443140 in words is "one hundred eleven million, four hundred forty-three thousand, one hundred forty".