320133308917 has 2 divisors, whose sum is σ = 320133308918. Its totient is φ = 320133308916.

The previous prime is 320133308857. The next prime is 320133308947. The reversal of 320133308917 is 719803331023.

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., 285539540881 + 34593768036 = 534359^2 + 185994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320133308917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320133308917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320133308947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160066654458 + 160066654459.

It is an arithmetic number, because the mean of its divisors is an integer number (160066654459).

Almost surely, 2^320133308917 is an apocalyptic number.

It is an amenable number.

320133308917 is a deficient number, since it is larger than the sum of its proper divisors (1).

320133308917 is an equidigital number, since it uses as much as digits as its factorization.

320133308917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The spelling of 320133308917 in words is "three hundred twenty billion, one hundred thirty-three million, three hundred eight thousand, nine hundred seventeen".