320423343323983 has 2 divisors, whose sum is σ = 320423343323984. Its totient is φ = 320423343323982.

The previous prime is 320423343323939. The next prime is 320423343324023. The reversal of 320423343323983 is 389323343324023.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320423343323983 is a prime.

It is a super-2 number, since 2×320423343323983² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320423343323983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320423343303983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160211671661991 + 160211671661992.

It is an arithmetic number, because the mean of its divisors is an integer number (160211671661992).

Almost surely, 2^{320423343323983} is an apocalyptic number.

320423343323983 is a deficient number, since it is larger than the sum of its proper divisors (1).

320423343323983 is an equidigital number, since it uses as much as digits as its factorization.

320423343323983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20155392, while the sum is 52.

The spelling of 320423343323983 in words is "three hundred twenty trillion, four hundred twenty-three billion, three hundred forty-three million, three hundred twenty-three thousand, nine hundred eighty-three".