320351401 has 2 divisors, whose sum is σ = 320351402. Its totient is φ = 320351400.

The previous prime is 320351387. The next prime is 320351413. The reversal of 320351401 is 104153023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193766400 + 126585001 = 13920^2 + 11251^2 .

It is a cyclic number.

It is not a de Polignac number, because 320351401 - 2¹¹ = 320349353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (320361401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160175700 + 160175701.

It is an arithmetic number, because the mean of its divisors is an integer number (160175701).

Almost surely, 2^320351401 is an apocalyptic number.

It is an amenable number.

320351401 is a deficient number, since it is larger than the sum of its proper divisors (1).

320351401 is an equidigital number, since it uses as much as digits as its factorization.

320351401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 320351401 is about 17898.3630815782. The cubic root of 320351401 is about 684.2406567712.

The spelling of 320351401 in words is "three hundred twenty million, three hundred fifty-one thousand, four hundred one".