113345220 has 24 divisors (see below), whose sum is σ = 317366784. Its totient is φ = 30225376.

The previous prime is 113345209. The next prime is 113345231. The reversal of 113345220 is 22543311.

It is an interprime number because it is at equal distance from previous prime (113345209) and next prime (113345231).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 944484 + ... + 944603.

It is an arithmetic number, because the mean of its divisors is an integer number (13223616).

Almost surely, 2^113345220 is an apocalyptic number.

113345220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113345220 is an abundant number, since it is smaller than the sum of its proper divisors (204021564).

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

113345220 is a wasteful number, since it uses less digits than its factorization.

113345220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889099 (or 1889097 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 113345220 is about 10646.3712127654. The cubic root of 113345220 is about 483.9506415527.

Adding to 113345220 its reverse (22543311), we get a palindrome (135888531).

The spelling of 113345220 in words is "one hundred thirteen million, three hundred forty-five thousand, two hundred twenty".