320312417 has 2 divisors, whose sum is σ = 320312418. Its totient is φ = 320312416.

The previous prime is 320312411. The next prime is 320312437. The reversal of 320312417 is 714213023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190329616 + 129982801 = 13796^2 + 11401^2 .

It is a cyclic number.

It is not a de Polignac number, because 320312417 - 2⁴ = 320312401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320312392 and 320312401.

It is not a weakly prime, because it can be changed into another prime (320312411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160156208 + 160156209.

It is an arithmetic number, because the mean of its divisors is an integer number (160156209).

Almost surely, 2^320312417 is an apocalyptic number.

It is an amenable number.

320312417 is a deficient number, since it is larger than the sum of its proper divisors (1).

320312417 is an equidigital number, since it uses as much as digits as its factorization.

320312417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 320312417 is about 17897.2740103067. The cubic root of 320312417 is about 684.2129002516.

The spelling of 320312417 in words is "three hundred twenty million, three hundred twelve thousand, four hundred seventeen".