321056337232 has 80 divisors (see below), whose sum is σ = 688403439360. Its totient is φ = 144278931456.

The previous prime is 321056337197. The next prime is 321056337247. The reversal of 321056337232 is 232733650123.

It is a junction number, because it is equal to n+sod(n) for n = 321056337191 and 321056337200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3793069 + ... + 3876787.

It is an arithmetic number, because the mean of its divisors is an integer number (8605042992).

Almost surely, 2^321056337232 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 321056337232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344201719680).

321056337232 is an abundant number, since it is smaller than the sum of its proper divisors (367347102128).

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

321056337232 is a wasteful number, since it uses less digits than its factorization.

321056337232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84380 (or 84374 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 37.

Adding to 321056337232 its reverse (232733650123), we get a palindrome (553789987355).

The spelling of 321056337232 in words is "three hundred twenty-one billion, fifty-six million, three hundred thirty-seven thousand, two hundred thirty-two".