323211987575717 has 2 divisors, whose sum is σ = 323211987575718. Its totient is φ = 323211987575716.

The previous prime is 323211987575699. The next prime is 323211987575731. The reversal of 323211987575717 is 717575789112323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323197014137761 + 14973437956 = 17977681^2 + 122366^2 .

It is a cyclic number.

It is not a de Polignac number, because 323211987575717 - 2¹⁴ = 323211987559333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323211987575017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161605993787858 + 161605993787859.

It is an arithmetic number, because the mean of its divisors is an integer number (161605993787859).

Almost surely, 2^{323211987575717} is an apocalyptic number.

It is an amenable number.

323211987575717 is a deficient number, since it is larger than the sum of its proper divisors (1).

323211987575717 is an equidigital number, since it uses as much as digits as its factorization.

323211987575717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155584800, while the sum is 68.

The spelling of 323211987575717 in words is "three hundred twenty-three trillion, two hundred eleven billion, nine hundred eighty-seven million, five hundred seventy-five thousand, seven hundred seventeen".