113420120 has 64 divisors (see below), whose sum is σ = 293068800. Its totient is φ = 39070080.

The previous prime is 113420057. The next prime is 113420161. The reversal of 113420120 is 21024311.

It is a junction number, because it is equal to n+sod(n) for n = 113420095 and 113420104.

It is a congruent number.

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, 1577 + ... + 15143.

It is an arithmetic number, because the mean of its divisors is an integer number (4579200).

Almost surely, 2^113420120 is an apocalyptic number.

113420120 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 113420120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146534400).

113420120 is an abundant number, since it is smaller than the sum of its proper divisors (179648680).

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

113420120 is a wasteful number, since it uses less digits than its factorization.

113420120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13608 (or 13604 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 113420120 is about 10649.8882623246. Note that the first 3 decimals coincide. The cubic root of 113420120 is about 484.0572183794.

Adding to 113420120 its reverse (21024311), we get a palindrome (134444431).

The spelling of 113420120 in words is "one hundred thirteen million, four hundred twenty thousand, one hundred twenty".