320809527321 has 8 divisors (see below), whose sum is σ = 428536696704. Its totient is φ = 213477688080.

The previous prime is 320809527317. The next prime is 320809527323. The reversal of 320809527321 is 123725908023.

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

It is not a de Polignac number, because 320809527321 - 2² = 320809527317 is a prime.

It is a super-3 number, since 3×320809527321³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (320809527323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98830641 + ... + 98833886.

It is an arithmetic number, because the mean of its divisors is an integer number (53567087088).

Almost surely, 2^320809527321 is an apocalyptic number.

It is an amenable number.

320809527321 is a deficient number, since it is larger than the sum of its proper divisors (107727169383).

320809527321 is a wasteful number, since it uses less digits than its factorization.

320809527321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197665071.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 320809527321 in words is "three hundred twenty billion, eight hundred nine million, five hundred twenty-seven thousand, three hundred twenty-one".