112121380 has 48 divisors (see below), whose sum is σ = 272361600. Its totient is φ = 37974528.

The previous prime is 112121363. The next prime is 112121381. The reversal of 112121380 is 83121211.

It is not an unprimeable number, because it can be changed into a prime (112121381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6796 + ... + 16444.

It is an arithmetic number, because the mean of its divisors is an integer number (5674200).

Almost surely, 2^112121380 is an apocalyptic number.

112121380 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 112121380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136180800).

112121380 is an abundant number, since it is smaller than the sum of its proper divisors (160240220).

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

112121380 is a wasteful number, since it uses less digits than its factorization.

112121380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9748 (or 9746 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 112121380 is about 10588.7383573304. The cubic root of 112121380 is about 482.2025227460.

Adding to 112121380 its reverse (83121211), we get a palindrome (195242591).

The spelling of 112121380 in words is "one hundred twelve million, one hundred twenty-one thousand, three hundred eighty".