320201317 has 2 divisors, whose sum is σ = 320201318. Its totient is φ = 320201316.

The previous prime is 320201309. The next prime is 320201333. The reversal of 320201317 is 713102023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237591396 + 82609921 = 15414^2 + 9089^2 .

It is a cyclic number.

It is not a de Polignac number, because 320201317 - 2³ = 320201309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320201294 and 320201303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320201347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160100658 + 160100659.

It is an arithmetic number, because the mean of its divisors is an integer number (160100659).

Almost surely, 2^320201317 is an apocalyptic number.

It is an amenable number.

320201317 is a deficient number, since it is larger than the sum of its proper divisors (1).

320201317 is an equidigital number, since it uses as much as digits as its factorization.

320201317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 320201317 is about 17894.1699164840. The cubic root of 320201317 is about 684.1337849467.

The spelling of 320201317 in words is "three hundred twenty million, two hundred one thousand, three hundred seventeen".