320203030123 has 16 divisors (see below), whose sum is σ = 328853431872. Its totient is φ = 311593408000.

The previous prime is 320203030111. The next prime is 320203030151. The reversal of 320203030123 is 321030302023.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 320203030123 - 2³³ = 311613095531 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 320203030123.

It is not an unprimeable number, because it can be changed into a prime (320203010123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49100103 + ... + 49106623.

It is an arithmetic number, because the mean of its divisors is an integer number (20553339492).

Almost surely, 2^320203030123 is an apocalyptic number.

320203030123 is a deficient number, since it is larger than the sum of its proper divisors (8650401749).

320203030123 is a wasteful number, since it uses less digits than its factorization.

320203030123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9446.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 320203030123 its reverse (321030302023), we get a palindrome (641233332146).

It can be divided in two parts, 3202030 and 30123, that added together give a triangular number (3232153 = T₂₅₄₂).

The spelling of 320203030123 in words is "three hundred twenty billion, two hundred three million, thirty thousand, one hundred twenty-three".