320242122817 has 2 divisors, whose sum is σ = 320242122818. Its totient is φ = 320242122816.

The previous prime is 320242122679. The next prime is 320242122841. The reversal of 320242122817 is 718221242023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290390576641 + 29851546176 = 538879^2 + 172776^2 .

It is a cyclic number.

It is not a de Polignac number, because 320242122817 - 2¹¹ = 320242120769 is a prime.

It is not a weakly prime, because it can be changed into another prime (320242120817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160121061408 + 160121061409.

It is an arithmetic number, because the mean of its divisors is an integer number (160121061409).

Almost surely, 2^320242122817 is an apocalyptic number.

It is an amenable number.

320242122817 is a deficient number, since it is larger than the sum of its proper divisors (1).

320242122817 is an equidigital number, since it uses as much as digits as its factorization.

320242122817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 34.

The spelling of 320242122817 in words is "three hundred twenty billion, two hundred forty-two million, one hundred twenty-two thousand, eight hundred seventeen".