113112213 has 4 divisors (see below), whose sum is σ = 150816288. Its totient is φ = 75408140.

The previous prime is 113112199. The next prime is 113112283. The reversal of 113112213 is 312211311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113112213 - 2¹⁰ = 113111189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113112192 and 113112201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113112283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18852033 + ... + 18852038.

It is an arithmetic number, because the mean of its divisors is an integer number (37704072).

Almost surely, 2^113112213 is an apocalyptic number.

It is an amenable number.

113112213 is a deficient number, since it is larger than the sum of its proper divisors (37704075).

113112213 is an equidigital number, since it uses as much as digits as its factorization.

113112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37704074.

The product of its digits is 36, while the sum is 15.

The square root of 113112213 is about 10635.4225586010. The cubic root of 113112213 is about 483.6187903399.

Adding to 113112213 its reverse (312211311), we get a palindrome (425323524).

The spelling of 113112213 in words is "one hundred thirteen million, one hundred twelve thousand, two hundred thirteen".