213343213 has 8 divisors (see below), whose sum is σ = 221316480. Its totient is φ = 205501920.

The previous prime is 213343187. The next prime is 213343231. The reversal of 213343213 is 312343312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213343213 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 (213343243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29695 + ... + 36172.

It is an arithmetic number, because the mean of its divisors is an integer number (27664560).

Almost surely, 2^213343213 is an apocalyptic number.

It is an amenable number.

213343213 is a deficient number, since it is larger than the sum of its proper divisors (7973267).

213343213 is an equidigital number, since it uses as much as digits as its factorization.

213343213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65987.

The product of its digits is 1296, while the sum is 22.

The square root of 213343213 is about 14606.2730701572. The cubic root of 213343213 is about 597.5298566455.

Adding to 213343213 its reverse (312343312), we get a palindrome (525686525).

Subtracting 213343213 from its reverse (312343312), we obtain a palindrome (99000099).

The spelling of 213343213 in words is "two hundred thirteen million, three hundred forty-three thousand, two hundred thirteen".