201232330217 has 2 divisors, whose sum is σ = 201232330218. Its totient is φ = 201232330216.

The previous prime is 201232330193. The next prime is 201232330223. The reversal of 201232330217 is 712033232102.

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., 192699928576 + 8532401641 = 438976^2 + 92371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201232330217 is a prime.

It is not a weakly prime, because it can be changed into another prime (201232330237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100616165108 + 100616165109.

It is an arithmetic number, because the mean of its divisors is an integer number (100616165109).

Almost surely, 2^201232330217 is an apocalyptic number.

It is an amenable number.

201232330217 is a deficient number, since it is larger than the sum of its proper divisors (1).

201232330217 is an equidigital number, since it uses as much as digits as its factorization.

201232330217 is an evil number, because the sum of its binary digits is even.

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

Adding to 201232330217 its reverse (712033232102), we get a palindrome (913265562319).

The spelling of 201232330217 in words is "two hundred one billion, two hundred thirty-two million, three hundred thirty thousand, two hundred seventeen".