213223213 has 8 divisors (see below), whose sum is σ = 243779840. Its totient is φ = 182690640.

The previous prime is 213223211. The next prime is 213223217. The reversal of 213223213 is 312322312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213223213 - 2¹ = 213223211 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 (213223211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21223 + ... + 29611.

It is an arithmetic number, because the mean of its divisors is an integer number (30472480).

Almost surely, 2^213223213 is an apocalyptic number.

It is an amenable number.

213223213 is a deficient number, since it is larger than the sum of its proper divisors (30556627).

213223213 is an equidigital number, since it uses as much as digits as its factorization.

213223213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12027.

The product of its digits is 432, while the sum is 19.

The square root of 213223213 is about 14602.1646682949. The cubic root of 213223213 is about 597.4178039741.

Adding to 213223213 its reverse (312322312), we get a palindrome (525545525).

Subtracting 213223213 from its reverse (312322312), we obtain a palindrome (99099099).

The spelling of 213223213 in words is "two hundred thirteen million, two hundred twenty-three thousand, two hundred thirteen".