320323210203 has 4 divisors (see below), whose sum is σ = 427097613608. Its totient is φ = 213548806800.

The previous prime is 320323210201. The next prime is 320323210241. The reversal of 320323210203 is 302012323023.

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

It is not a de Polignac number, because 320323210203 - 2¹ = 320323210201 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 320323210203.

It is not an unprimeable number, because it can be changed into a prime (320323210201) 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, 53387201698 + ... + 53387201703.

It is an arithmetic number, because the mean of its divisors is an integer number (106774403402).

Almost surely, 2^320323210203 is an apocalyptic number.

320323210203 is a deficient number, since it is larger than the sum of its proper divisors (106774403405).

320323210203 is a wasteful number, since it uses less digits than its factorization.

320323210203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106774403404.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 320323210203 its reverse (302012323023), we get a palindrome (622335533226).

The spelling of 320323210203 in words is "three hundred twenty billion, three hundred twenty-three million, two hundred ten thousand, two hundred three".