320311131242123 has 4 divisors (see below), whose sum is σ = 366069864276720. Its totient is φ = 274552398207528.

The previous prime is 320311131242093. The next prime is 320311131242149. The reversal of 320311131242123 is 321242131113023.

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

It is not a de Polignac number, because 320311131242123 - 2¹⁰ = 320311131241099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320311131242923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22879366517288 + ... + 22879366517301.

It is an arithmetic number, because the mean of its divisors is an integer number (91517466069180).

Almost surely, 2^{320311131242123} is an apocalyptic number.

320311131242123 is a deficient number, since it is larger than the sum of its proper divisors (45758733034597).

320311131242123 is an equidigital number, since it uses as much as digits as its factorization.

320311131242123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45758733034596.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 320311131242123 its reverse (321242131113023), we get a palindrome (641553262355146).

The spelling of 320311131242123 in words is "three hundred twenty trillion, three hundred eleven billion, one hundred thirty-one million, two hundred forty-two thousand, one hundred twenty-three".