321010000000 has 256 divisors, whose sum is σ = 817591656960. Its totient is φ = 125488000000.

The previous prime is 321009999967. The next prime is 321010000019. The reversal of 321010000000 is 10123.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 469999659 + ... + 470000341.

It is an arithmetic number, because the mean of its divisors is an integer number (3193717410).

Almost surely, 2^321010000000 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 321010000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408795828480).

321010000000 is an abundant number, since it is smaller than the sum of its proper divisors (496581656960).

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

321010000000 is an frugal number, since it uses more digits than its factorization.

321010000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

Adding to 321010000000 its reverse (10123), we get a palindrome (321010010123).

The spelling of 321010000000 in words is "three hundred twenty-one billion, ten million", and thus it is an aban number.