113445120 has 144 divisors (see below), whose sum is σ = 374395392. Its totient is φ = 29245440.

The previous prime is 113445103. The next prime is 113445121. The reversal of 113445120 is 21544311.

It is not an unprimeable number, because it can be changed into a prime (113445121) 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, 118564 + ... + 119516.

It is an arithmetic number, because the mean of its divisors is an integer number (2599968).

Almost surely, 2^113445120 is an apocalyptic number.

113445120 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 113445120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187197696).

113445120 is an abundant number, since it is smaller than the sum of its proper divisors (260950272).

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

113445120 is an equidigital number, since it uses as much as digits as its factorization.

113445120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 113445120 is about 10651.0619188887. The cubic root of 113445120 is about 484.0927809746.

Adding to 113445120 its reverse (21544311), we get a palindrome (134989431).

The spelling of 113445120 in words is "one hundred thirteen million, four hundred forty-five thousand, one hundred twenty".