213023231013017 has 2 divisors, whose sum is σ = 213023231013018. Its totient is φ = 213023231013016.

The previous prime is 213023231013007. The next prime is 213023231013139. The reversal of 213023231013017 is 710310132320312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204360634066576 + 8662596946441 = 14295476^2 + 2943229^2 .

It is a cyclic number.

It is not a de Polignac number, because 213023231013017 - 2¹⁴ = 213023230996633 is a prime.

It is not a weakly prime, because it can be changed into another prime (213023231013007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106511615506508 + 106511615506509.

It is an arithmetic number, because the mean of its divisors is an integer number (106511615506509).

Almost surely, 2^{213023231013017} is an apocalyptic number.

It is an amenable number.

213023231013017 is a deficient number, since it is larger than the sum of its proper divisors (1).

213023231013017 is an equidigital number, since it uses as much as digits as its factorization.

213023231013017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 213023231013017 its reverse (710310132320312), we get a palindrome (923333363333329).

The spelling of 213023231013017 in words is "two hundred thirteen trillion, twenty-three billion, two hundred thirty-one million, thirteen thousand, seventeen".