113213213 has 4 divisors (see below), whose sum is σ = 114077568. Its totient is φ = 112348860.

The previous prime is 113213207. The next prime is 113213227. The reversal of 113213213 is 312312311.

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 113213213 - 2⁴ = 113213197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113213191 and 113213200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113213273) 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, 431981 + ... + 432242.

It is an arithmetic number, because the mean of its divisors is an integer number (28519392).

Almost surely, 2^113213213 is an apocalyptic number.

It is an amenable number.

113213213 is a deficient number, since it is larger than the sum of its proper divisors (864355).

113213213 is an equidigital number, since it uses as much as digits as its factorization.

113213213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864354.

The product of its digits is 108, while the sum is 17.

The square root of 113213213 is about 10640.1697824800. The cubic root of 113213213 is about 483.7626915904.

Adding to 113213213 its reverse (312312311), we get a palindrome (425525524).

The spelling of 113213213 in words is "one hundred thirteen million, two hundred thirteen thousand, two hundred thirteen".