423123203320313 has 24 divisors (see below), whose sum is σ = 436861974433920. Its totient is φ = 409748036967360.

The previous prime is 423123203320309. The next prime is 423123203320343. The reversal of 423123203320313 is 313023302321324.

It is not a de Polignac number, because 423123203320313 - 2² = 423123203320309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423123203320313.

It is not an unprimeable number, because it can be changed into a prime (423123203320343) 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 in 23 ways as a sum of consecutive naturals, for example, 667857395 + ... + 668490647.

It is an arithmetic number, because the mean of its divisors is an integer number (18202582268080).

Almost surely, 2^{423123203320313} is an apocalyptic number.

It is an amenable number.

423123203320313 is a deficient number, since it is larger than the sum of its proper divisors (13738771113607).

423123203320313 is an equidigital number, since it uses as much as digits as its factorization.

423123203320313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636449 (or 636396 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 32.

Adding to 423123203320313 its reverse (313023302321324), we get a palindrome (736146505641637).

The spelling of 423123203320313 in words is "four hundred twenty-three trillion, one hundred twenty-three billion, two hundred three million, three hundred twenty thousand, three hundred thirteen".