320320212320 has 96 divisors (see below), whose sum is σ = 758838144960. Its totient is φ = 127776194560.

The previous prime is 320320212307. The next prime is 320320212353. The reversal of 320320212320 is 23212023023.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 320320212292 and 320320212301.

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, 132198629 + ... + 132201051.

It is an arithmetic number, because the mean of its divisors is an integer number (7904564010).

Almost surely, 2^320320212320 is an apocalyptic number.

It is an amenable number.

320320212320 is an abundant number, since it is smaller than the sum of its proper divisors (438517932640).

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

320320212320 is a wasteful number, since it uses less digits than its factorization.

320320212320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368 (or 4360 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 320320212320 its reverse (23212023023), we get a palindrome (343532235343).

The spelling of 320320212320 in words is "three hundred twenty billion, three hundred twenty million, two hundred twelve thousand, three hundred twenty".