320012133321 has 16 divisors (see below), whose sum is σ = 464627419200. Its totient is φ = 195143514048.

The previous prime is 320012133313. The next prime is 320012133341. The reversal of 320012133321 is 123331210023.

It is not a de Polignac number, because 320012133321 - 2³ = 320012133313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320012133341) by changing a digit.

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, 96795726 + ... + 96799031.

It is an arithmetic number, because the mean of its divisors is an integer number (29039213700).

Almost surely, 2^320012133321 is an apocalyptic number.

It is an amenable number.

320012133321 is a deficient number, since it is larger than the sum of its proper divisors (144615285879).

320012133321 is a wasteful number, since it uses less digits than its factorization.

320012133321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193594808.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 320012133321 its reverse (123331210023), we get a palindrome (443343343344).

The spelling of 320012133321 in words is "three hundred twenty billion, twelve million, one hundred thirty-three thousand, three hundred twenty-one".