213331330213 has 2 divisors, whose sum is σ = 213331330214. Its totient is φ = 213331330212.

The previous prime is 213331330187. The next prime is 213331330241. The reversal of 213331330213 is 312033133312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140024143204 + 73307187009 = 374198^2 + 270753^2 .

It is a cyclic number.

It is not a de Polignac number, because 213331330213 - 2²⁵ = 213297775781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213331333213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106665665106 + 106665665107.

It is an arithmetic number, because the mean of its divisors is an integer number (106665665107).

Almost surely, 2^213331330213 is an apocalyptic number.

It is an amenable number.

213331330213 is a deficient number, since it is larger than the sum of its proper divisors (1).

213331330213 is an equidigital number, since it uses as much as digits as its factorization.

213331330213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 213331330213 its reverse (312033133312), we get a palindrome (525364463525).

The spelling of 213331330213 in words is "two hundred thirteen billion, three hundred thirty-one million, three hundred thirty thousand, two hundred thirteen".