321331233123023 has 2 divisors, whose sum is σ = 321331233123024. Its totient is φ = 321331233123022.

The previous prime is 321331233122989. The next prime is 321331233123101. The reversal of 321331233123023 is 320321332133123.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321331233123023 is a prime.

It is a super-2 number, since 2×321331233123023² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321331233123623) 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, 160665616561511 + 160665616561512.

It is an arithmetic number, because the mean of its divisors is an integer number (160665616561512).

Almost surely, 2^{321331233123023} is an apocalyptic number.

321331233123023 is a deficient number, since it is larger than the sum of its proper divisors (1).

321331233123023 is an equidigital number, since it uses as much as digits as its factorization.

321331233123023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 32.

Adding to 321331233123023 its reverse (320321332133123), we get a palindrome (641652565256146).

The spelling of 321331233123023 in words is "three hundred twenty-one trillion, three hundred thirty-one billion, two hundred thirty-three million, one hundred twenty-three thousand, twenty-three".