320403453323 has 2 divisors, whose sum is σ = 320403453324. Its totient is φ = 320403453322.

The previous prime is 320403453283. The next prime is 320403453361. The reversal of 320403453323 is 323354304023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320403453323 - 2⁸ = 320403453067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320403453323.

It is not a weakly prime, because it can be changed into another prime (320403353323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160201726661 + 160201726662.

It is an arithmetic number, because the mean of its divisors is an integer number (160201726662).

Almost surely, 2^320403453323 is an apocalyptic number.

320403453323 is a deficient number, since it is larger than the sum of its proper divisors (1).

320403453323 is an equidigital number, since it uses as much as digits as its factorization.

320403453323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 32.

Adding to 320403453323 its reverse (323354304023), we get a palindrome (643757757346).

The spelling of 320403453323 in words is "three hundred twenty billion, four hundred three million, four hundred fifty-three thousand, three hundred twenty-three".