320030343220 has 48 divisors (see below), whose sum is σ = 768505651200. Its totient is φ = 109662856704.

The previous prime is 320030343211. The next prime is 320030343223. The reversal of 320030343220 is 22343030023.

It is a junction number, because it is equal to n+sod(n) for n = 320030343191 and 320030343200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320030343223) 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, 394420 + ... + 891979.

It is an arithmetic number, because the mean of its divisors is an integer number (16010534400).

Almost surely, 2^320030343220 is an apocalyptic number.

It is an amenable number.

320030343220 is an abundant number, since it is smaller than the sum of its proper divisors (448475307980).

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

320030343220 is a wasteful number, since it uses less digits than its factorization.

320030343220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288192 (or 1288190 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 22.

Adding to 320030343220 its reverse (22343030023), we get a palindrome (342373373243).

The spelling of 320030343220 in words is "three hundred twenty billion, thirty million, three hundred forty-three thousand, two hundred twenty".