113317220 has 24 divisors (see below), whose sum is σ = 238997304. Its totient is φ = 45130496.

The previous prime is 113317187. The next prime is 113317231. The reversal of 113317220 is 22713311.

It can be written as a sum of positive squares in 4 ways, for example, as 7268416 + 106048804 = 2696^2 + 10298^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 113317192 and 113317201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7499 + ... + 16818.

It is an arithmetic number, because the mean of its divisors is an integer number (9958221).

Almost surely, 2^113317220 is an apocalyptic number.

113317220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113317220 is an abundant number, since it is smaller than the sum of its proper divisors (125680084).

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

113317220 is a wasteful number, since it uses less digits than its factorization.

113317220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24559 (or 24557 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 113317220 is about 10645.0561294903. The cubic root of 113317220 is about 483.9107876916.

The spelling of 113317220 in words is "one hundred thirteen million, three hundred seventeen thousand, two hundred twenty".