321452153030240 has 96 divisors (see below), whose sum is σ = 767990963053440. Its totient is φ = 127131609268224.

The previous prime is 321452153030159. The next prime is 321452153030251. The reversal of 321452153030240 is 42030351254123.

It is a self number, because there is not a number n which added to its sum of digits gives 321452153030240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414951104 + ... + 415725056.

It is an arithmetic number, because the mean of its divisors is an integer number (7999905865140).

Almost surely, 2^{321452153030240} 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 321452153030240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383995481526720).

321452153030240 is an abundant number, since it is smaller than the sum of its proper divisors (446538810023200).

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

321452153030240 is a wasteful number, since it uses less digits than its factorization.

321452153030240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803224 (or 803216 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 321452153030240 in words is "three hundred twenty-one trillion, four hundred fifty-two billion, one hundred fifty-three million, thirty thousand, two hundred forty".