320743936319 has 2 divisors, whose sum is σ = 320743936320. Its totient is φ = 320743936318.

The previous prime is 320743936229. The next prime is 320743936339. The reversal of 320743936319 is 913639347023.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320743936319 is a prime.

It is a super-2 number, since 2×320743936319² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320743936339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160371968159 + 160371968160.

It is an arithmetic number, because the mean of its divisors is an integer number (160371968160).

Almost surely, 2^320743936319 is an apocalyptic number.

320743936319 is a deficient number, since it is larger than the sum of its proper divisors (1).

320743936319 is an equidigital number, since it uses as much as digits as its factorization.

320743936319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2204496, while the sum is 50.

The spelling of 320743936319 in words is "three hundred twenty billion, seven hundred forty-three million, nine hundred thirty-six thousand, three hundred nineteen".