113630213 has 4 divisors (see below), whose sum is σ = 113726028. Its totient is φ = 113534400.

The previous prime is 113630177. The next prime is 113630239. The reversal of 113630213 is 312036311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58564 + 113571649 = 242^2 + 10657^2 .

It is a cyclic number.

It is not a de Polignac number, because 113630213 - 2¹⁸ = 113368069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113630243) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 46106 + ... + 48507.

It is an arithmetic number, because the mean of its divisors is an integer number (28431507).

Almost surely, 2^113630213 is an apocalyptic number.

It is an amenable number.

113630213 is a deficient number, since it is larger than the sum of its proper divisors (95815).

113630213 is an equidigital number, since it uses as much as digits as its factorization.

113630213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95814.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 113630213 is about 10659.7473234594. The cubic root of 113630213 is about 484.3559140756.

Adding to 113630213 its reverse (312036311), we get a palindrome (425666524).

The spelling of 113630213 in words is "one hundred thirteen million, six hundred thirty thousand, two hundred thirteen".