320021213233332 has 96 divisors (see below), whose sum is σ = 822868765488000. Its totient is φ = 96176755100160.

The previous prime is 320021213233331. The next prime is 320021213233343. The reversal of 320021213233332 is 233332312120023.

It is a self number, because there is not a number n which added to its sum of digits gives 320021213233332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320021213233331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 540509794 + ... + 541101542.

It is an arithmetic number, because the mean of its divisors is an integer number (8571549640500).

Almost surely, 2^{320021213233332} is an apocalyptic number.

It is an amenable number.

320021213233332 is an abundant number, since it is smaller than the sum of its proper divisors (502847552254668).

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

320021213233332 is a wasteful number, since it uses less digits than its factorization.

320021213233332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672433 (or 672431 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 30.

Adding to 320021213233332 its reverse (233332312120023), we get a palindrome (553353525353355).

The spelling of 320021213233332 in words is "three hundred twenty trillion, twenty-one billion, two hundred thirteen million, two hundred thirty-three thousand, three hundred thirty-two".