213230032217 has 2 divisors, whose sum is σ = 213230032218. Its totient is φ = 213230032216.

The previous prime is 213230032193. The next prime is 213230032229. The reversal of 213230032217 is 712230032312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117387779161 + 95842253056 = 342619^2 + 309584^2 .

It is a cyclic number.

It is not a de Polignac number, because 213230032217 - 2⁸ = 213230031961 is a prime.

It is not a weakly prime, because it can be changed into another prime (213230062217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106615016108 + 106615016109.

It is an arithmetic number, because the mean of its divisors is an integer number (106615016109).

Almost surely, 2^213230032217 is an apocalyptic number.

It is an amenable number.

213230032217 is a deficient number, since it is larger than the sum of its proper divisors (1).

213230032217 is an equidigital number, since it uses as much as digits as its factorization.

213230032217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 213230032217 its reverse (712230032312), we get a palindrome (925460064529).

The spelling of 213230032217 in words is "two hundred thirteen billion, two hundred thirty million, thirty-two thousand, two hundred seventeen".