321003020321340 has 192 divisors, whose sum is σ = 1046801795106816. Its totient is φ = 71973238791168.

The previous prime is 321003020321311. The next prime is 321003020321387. The reversal of 321003020321340 is 43123020300123.

It is a self number, because there is not a number n which added to its sum of digits gives 321003020321340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 109249089 + ... + 112148871.

It is an arithmetic number, because the mean of its divisors is an integer number (5452092682848).

Almost surely, 2^{321003020321340} is an apocalyptic number.

321003020321340 is a gapful number since it is divisible by the number (30) 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 321003020321340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523400897553408).

321003020321340 is an abundant number, since it is smaller than the sum of its proper divisors (725798774785476).

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

321003020321340 is a wasteful number, since it uses less digits than its factorization.

321003020321340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904828 (or 2904826 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 321003020321340 its reverse (43123020300123), we get a palindrome (364126040621463).

The spelling of 321003020321340 in words is "three hundred twenty-one trillion, three billion, twenty million, three hundred twenty-one thousand, three hundred forty".