213103330217 has 2 divisors, whose sum is σ = 213103330218. Its totient is φ = 213103330216.

The previous prime is 213103330189. The next prime is 213103330229. The reversal of 213103330217 is 712033301312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206846678416 + 6256651801 = 454804^2 + 79099^2 .

It is a cyclic number.

It is not a de Polignac number, because 213103330217 - 2⁸ = 213103329961 is a prime.

It is not a weakly prime, because it can be changed into another prime (213103330267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106551665108 + 106551665109.

It is an arithmetic number, because the mean of its divisors is an integer number (106551665109).

Almost surely, 2^213103330217 is an apocalyptic number.

It is an amenable number.

213103330217 is a deficient number, since it is larger than the sum of its proper divisors (1).

213103330217 is an equidigital number, since it uses as much as digits as its factorization.

213103330217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

Adding to 213103330217 its reverse (712033301312), we get a palindrome (925136631529).

The spelling of 213103330217 in words is "two hundred thirteen billion, one hundred three million, three hundred thirty thousand, two hundred seventeen".