321303000020 has 48 divisors (see below), whose sum is σ = 678933964800. Its totient is φ = 127722004224.

The previous prime is 321302999999. The next prime is 321303000023. The reversal of 321303000020 is 20000303123.

It is a junction number, because it is equal to n+sod(n) for n = 321302999959 and 321303000004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321303000023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19527437 + ... + 19543883.

It is an arithmetic number, because the mean of its divisors is an integer number (14144457600).

Almost surely, 2^321303000020 is an apocalyptic number.

It is an amenable number.

321303000020 is an abundant number, since it is smaller than the sum of its proper divisors (357630964780).

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

321303000020 is a wasteful number, since it uses less digits than its factorization.

321303000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22472 (or 22470 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 321303000020 its reverse (20000303123), we get a palindrome (341303303143).

The spelling of 321303000020 in words is "three hundred twenty-one billion, three hundred three million, twenty", and thus it is an aban number.