320313000220 has 24 divisors (see below), whose sum is σ = 688300495344. Its totient is φ = 125145543936.

The previous prime is 320313000157. The next prime is 320313000229. The reversal of 320313000220 is 22000313023.

It is a junction number, because it is equal to n+sod(n) for n = 320313000194 and 320313000203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320313000229) 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 7 ways as a sum of consecutive naturals, for example, 186227629 + ... + 186229348.

It is an arithmetic number, because the mean of its divisors is an integer number (28679187306).

Almost surely, 2^320313000220 is an apocalyptic number.

It is an amenable number.

320313000220 is an abundant number, since it is smaller than the sum of its proper divisors (367987495124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320313000220 is a wasteful number, since it uses less digits than its factorization.

320313000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372457029 (or 372457027 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 320313000220 its reverse (22000313023), we get a palindrome (342313313243).

The spelling of 320313000220 in words is "three hundred twenty billion, three hundred thirteen million, two hundred twenty", and thus it is an aban number.