321203488668 has 96 divisors (see below), whose sum is σ = 796694384640. Its totient is φ = 100436656320.

The previous prime is 321203488657. The next prime is 321203488751. The reversal of 321203488668 is 866884302123.

It is a super-2 number, since 2×321203488668² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 321203488668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13817271 + ... + 13840497.

It is an arithmetic number, because the mean of its divisors is an integer number (8298899840).

Almost surely, 2^321203488668 is an apocalyptic number.

321203488668 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321203488668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398347192320).

321203488668 is an abundant number, since it is smaller than the sum of its proper divisors (475490895972).

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

321203488668 is a wasteful number, since it uses less digits than its factorization.

321203488668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23847 (or 23845 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 51.

The spelling of 321203488668 in words is "three hundred twenty-one billion, two hundred three million, four hundred eighty-eight thousand, six hundred sixty-eight".