1112112180 has 120 divisors (see below), whose sum is σ = 3672456480. Its totient is φ = 280946880.

The previous prime is 1112112179. The next prime is 1112112187. The reversal of 1112112180 is 812112111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112112187) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 12715 + ... + 48845.

It is an arithmetic number, because the mean of its divisors is an integer number (30603804).

Almost surely, 2^1112112180 is an apocalyptic number.

1112112180 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 1112112180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1836228240).

1112112180 is an abundant number, since it is smaller than the sum of its proper divisors (2560344300).

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

1112112180 is a wasteful number, since it uses less digits than its factorization.

1112112180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36171 (or 36160 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

The square root of 1112112180 is about 33348.3459859706. The cubic root of 1112112180 is about 1036.0551306609.

Adding to 1112112180 its reverse (812112111), we get a palindrome (1924224291).

The spelling of 1112112180 in words is "one billion, one hundred twelve million, one hundred twelve thousand, one hundred eighty".