320013103123 has 4 divisors (see below), whose sum is σ = 365729260720. Its totient is φ = 274296945528.

The previous prime is 320013103099. The next prime is 320013103133. The reversal of 320013103123 is 321301310023.

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-320013103123 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 320013103123.

It is not an unprimeable number, because it can be changed into a prime (320013103133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22858078788 + ... + 22858078801.

It is an arithmetic number, because the mean of its divisors is an integer number (91432315180).

Almost surely, 2^320013103123 is an apocalyptic number.

320013103123 is a deficient number, since it is larger than the sum of its proper divisors (45716157597).

320013103123 is an equidigital number, since it uses as much as digits as its factorization.

320013103123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45716157596.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 320013103123 its reverse (321301310023), we get a palindrome (641314413146).

The spelling of 320013103123 in words is "three hundred twenty billion, thirteen million, one hundred three thousand, one hundred twenty-three".