123320123323373 has 2 divisors, whose sum is σ = 123320123323374. Its totient is φ = 123320123323372.

The previous prime is 123320123323321. The next prime is 123320123323381. The reversal of 123320123323373 is 373323321023321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123280761556969 + 39361766404 = 11103187^2 + 198398^2 .

It is a cyclic number.

It is not a de Polignac number, because 123320123323373 - 2²² = 123320119129069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123320123322373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61660061661686 + 61660061661687.

It is an arithmetic number, because the mean of its divisors is an integer number (61660061661687).

Almost surely, 2^{123320123323373} is an apocalyptic number.

It is an amenable number.

123320123323373 is a deficient number, since it is larger than the sum of its proper divisors (1).

123320123323373 is an equidigital number, since it uses as much as digits as its factorization.

123320123323373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 38.

Adding to 123320123323373 its reverse (373323321023321), we get a palindrome (496643444346694).

The spelling of 123320123323373 in words is "one hundred twenty-three trillion, three hundred twenty billion, one hundred twenty-three million, three hundred twenty-three thousand, three hundred seventy-three".