320234544502393 has 2 divisors, whose sum is σ = 320234544502394. Its totient is φ = 320234544502392.

The previous prime is 320234544502339. The next prime is 320234544502399. The reversal of 320234544502393 is 393205445432023.

Together with previous prime (320234544502339) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319365599864809 + 868944637584 = 17870803^2 + 932172^2 .

It is a cyclic number.

It is not a de Polignac number, because 320234544502393 - 2⁹ = 320234544501881 is a prime.

It is not a weakly prime, because it can be changed into another prime (320234544502399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160117272251196 + 160117272251197.

It is an arithmetic number, because the mean of its divisors is an integer number (160117272251197).

Almost surely, 2^{320234544502393} is an apocalyptic number.

It is an amenable number.

320234544502393 is a deficient number, since it is larger than the sum of its proper divisors (1).

320234544502393 is an equidigital number, since it uses as much as digits as its factorization.

320234544502393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9331200, while the sum is 49.

The spelling of 320234544502393 in words is "three hundred twenty trillion, two hundred thirty-four billion, five hundred forty-four million, five hundred two thousand, three hundred ninety-three".