320123330321203 has 4 divisors (see below), whose sum is σ = 327568058933368. Its totient is φ = 312678601709040.

The previous prime is 320123330321177. The next prime is 320123330321209. The reversal of 320123330321203 is 302123033321023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320123330321203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320123330321209) 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 3 ways as a sum of consecutive naturals, for example, 3722364306018 + ... + 3722364306103.

It is an arithmetic number, because the mean of its divisors is an integer number (81892014733342).

Almost surely, 2^{320123330321203} is an apocalyptic number.

320123330321203 is a deficient number, since it is larger than the sum of its proper divisors (7444728612165).

320123330321203 is an equidigital number, since it uses as much as digits as its factorization.

320123330321203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7444728612164.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 320123330321203 its reverse (302123033321023), we get a palindrome (622246363642226).

The spelling of 320123330321203 in words is "three hundred twenty trillion, one hundred twenty-three billion, three hundred thirty million, three hundred twenty-one thousand, two hundred three".