320013210020 has 24 divisors (see below), whose sum is σ = 768031704384. Its totient is φ = 109718814816.

The previous prime is 320013209987. The next prime is 320013210047. The reversal of 320013210020 is 20012310023.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 320013209977 and 320013210004.

It is an unprimeable number.

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, 1142904182 + ... + 1142904461.

It is an arithmetic number, because the mean of its divisors is an integer number (32001321016).

Almost surely, 2^320013210020 is an apocalyptic number.

It is an amenable number.

320013210020 is an abundant number, since it is smaller than the sum of its proper divisors (448018494364).

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

320013210020 is a wasteful number, since it uses less digits than its factorization.

320013210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285808659 (or 2285808657 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 320013210020 its reverse (20012310023), we get a palindrome (340025520043).

The spelling of 320013210020 in words is "three hundred twenty billion, thirteen million, two hundred ten thousand, twenty".