321300213320 has 16 divisors (see below), whose sum is σ = 722925480060. Its totient is φ = 128520085312.

The previous prime is 321300213263. The next prime is 321300213349. The reversal of 321300213320 is 23312003123.

It can be written as a sum of positive squares in 2 ways, for example, as 317863674436 + 3436538884 = 563794^2 + 58622^2 .

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 = 321300213292 and 321300213301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4016252627 + ... + 4016252706.

Almost surely, 2^321300213320 is an apocalyptic number.

It is an amenable number.

321300213320 is an abundant number, since it is smaller than the sum of its proper divisors (401625266740).

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

321300213320 is a wasteful number, since it uses less digits than its factorization.

321300213320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8032505344 (or 8032505340 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 321300213320 its reverse (23312003123), we get a palindrome (344612216443).

The spelling of 321300213320 in words is "three hundred twenty-one billion, three hundred million, two hundred thirteen thousand, three hundred twenty".