320231033319973 has 2 divisors, whose sum is σ = 320231033319974. Its totient is φ = 320231033319972.

The previous prime is 320231033319971. The next prime is 320231033320007. The reversal of 320231033319973 is 379913330132023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164052600123204 + 156178433196769 = 12808302^2 + 12497137^2 .

It is a cyclic number.

It is not a de Polignac number, because 320231033319973 - 2¹ = 320231033319971 is a prime.

Together with 320231033319971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320231033319971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160115516659986 + 160115516659987.

It is an arithmetic number, because the mean of its divisors is an integer number (160115516659987).

Almost surely, 2^{320231033319973} is an apocalyptic number.

It is an amenable number.

320231033319973 is a deficient number, since it is larger than the sum of its proper divisors (1).

320231033319973 is an equidigital number, since it uses as much as digits as its factorization.

320231033319973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1653372, while the sum is 49.

The spelling of 320231033319973 in words is "three hundred twenty trillion, two hundred thirty-one billion, thirty-three million, three hundred nineteen thousand, nine hundred seventy-three".