320300220020 has 48 divisors (see below), whose sum is σ = 734748392448. Its totient is φ = 116318885760.

The previous prime is 320300219971. The next prime is 320300220077. The reversal of 320300220020 is 20022003023.

It is a junction number, because it is equal to n+sod(n) for n = 320300219977 and 320300220004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 795092 + ... + 1128171.

It is an arithmetic number, because the mean of its divisors is an integer number (15307258176).

Almost surely, 2^320300220020 is an apocalyptic number.

It is an amenable number.

320300220020 is an abundant number, since it is smaller than the sum of its proper divisors (414448172428).

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

320300220020 is a wasteful number, since it uses less digits than its factorization.

320300220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924040 (or 1924038 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

Adding to 320300220020 its reverse (20022003023), we get a palindrome (340322223043).

The spelling of 320300220020 in words is "three hundred twenty billion, three hundred million, two hundred twenty thousand, twenty".