213304223 has 16 divisors (see below), whose sum is σ = 241397280. Its totient is φ = 186768000.

The previous prime is 213304207. The next prime is 213304229. The reversal of 213304223 is 322403312.

It is a cyclic number.

It is not a de Polignac number, because 213304223 - 2⁴ = 213304207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213304195 and 213304204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213304229) 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 15 ways as a sum of consecutive naturals, for example, 38513 + ... + 43701.

It is an arithmetic number, because the mean of its divisors is an integer number (15087330).

Almost surely, 2^213304223 is an apocalyptic number.

213304223 is a deficient number, since it is larger than the sum of its proper divisors (28093057).

213304223 is a wasteful number, since it uses less digits than its factorization.

213304223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5338.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 213304223 is about 14604.9383086681. The cubic root of 213304223 is about 597.4934534743.

Adding to 213304223 its reverse (322403312), we get a palindrome (535707535).

The spelling of 213304223 in words is "two hundred thirteen million, three hundred four thousand, two hundred twenty-three".