320021011303212 has 24 divisors (see below), whose sum is σ = 746973447934896. Its totient is φ = 106636848306688.

The previous prime is 320021011303127. The next prime is 320021011303223. The reversal of 320021011303212 is 212303110120023.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4602729753 + ... + 4602799280.

It is an arithmetic number, because the mean of its divisors is an integer number (31123893663954).

Almost surely, 2^{320021011303212} is an apocalyptic number.

It is an amenable number.

320021011303212 is an abundant number, since it is smaller than the sum of its proper divisors (426952436631684).

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

320021011303212 is a wasteful number, since it uses less digits than its factorization.

320021011303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9205531937 (or 9205531935 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 320021011303212 its reverse (212303110120023), we get a palindrome (532324121423235).

The spelling of 320021011303212 in words is "three hundred twenty trillion, twenty-one billion, eleven million, three hundred three thousand, two hundred twelve".