321300002320 has 240 divisors, whose sum is σ = 833892252480. Its totient is φ = 115031403520.

The previous prime is 321300002299. The next prime is 321300002327. The reversal of 321300002320 is 23200003123.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 321300002294 and 321300002303.

It is not an unprimeable number, because it can be changed into a prime (321300002327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 185400174 + ... + 185401906.

It is an arithmetic number, because the mean of its divisors is an integer number (3474551052).

Almost surely, 2^321300002320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321300002320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416946126240).

321300002320 is an abundant number, since it is smaller than the sum of its proper divisors (512592250160).

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

321300002320 is a wasteful number, since it uses less digits than its factorization.

321300002320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054 (or 2037 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 321300002320 its reverse (23200003123), we get a palindrome (344500005443).

The spelling of 321300002320 in words is "three hundred twenty-one billion, three hundred million, two thousand, three hundred twenty".