113220113 has 4 divisors (see below), whose sum is σ = 113690148. Its totient is φ = 112750080.

The previous prime is 113220103. The next prime is 113220127. The reversal of 113220113 is 311022311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311022311 = 43 ⋅7233077.

It can be written as a sum of positive squares in 2 ways, for example, as 30991489 + 82228624 = 5567^2 + 9068^2 .

It is a cyclic number.

It is not a de Polignac number, because 113220113 - 2¹⁰ = 113219089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113220103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234656 + ... + 235137.

It is an arithmetic number, because the mean of its divisors is an integer number (28422537).

Almost surely, 2^113220113 is an apocalyptic number.

It is an amenable number.

113220113 is a deficient number, since it is larger than the sum of its proper divisors (470035).

113220113 is an equidigital number, since it uses as much as digits as its factorization.

113220113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470034.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 113220113 is about 10640.4940204861. The cubic root of 113220113 is about 483.7725193442.

Adding to 113220113 its reverse (311022311), we get a palindrome (424242424).

The spelling of 113220113 in words is "one hundred thirteen million, two hundred twenty thousand, one hundred thirteen".