321381821382 has 8 divisors (see below), whose sum is σ = 642763642776. Its totient is φ = 107127273792.

The previous prime is 321381821363. The next prime is 321381821419. The reversal of 321381821382 is 283128183123.

It is a sphenic number, since it is the product of 3 distinct primes.

321381821382 is an admirable number.

It is a super-2 number, since 2×321381821382² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26781818443 + ... + 26781818454.

It is an arithmetic number, because the mean of its divisors is an integer number (80345455347).

Almost surely, 2^321381821382 is an apocalyptic number.

321381821382 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

321381821382 is a wasteful number, since it uses less digits than its factorization.

321381821382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53563636902.

The product of its digits is 110592, while the sum is 42.

The spelling of 321381821382 in words is "three hundred twenty-one billion, three hundred eighty-one million, eight hundred twenty-one thousand, three hundred eighty-two".