323221140312 has 64 divisors (see below), whose sum is σ = 926229457920. Its totient is φ = 92074848768.

The previous prime is 323221140299. The next prime is 323221140313. The reversal of 323221140312 is 213041122323.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323221140313) 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 15 ways as a sum of consecutive naturals, for example, 2797888 + ... + 2911119.

It is an arithmetic number, because the mean of its divisors is an integer number (14472335280).

Almost surely, 2^323221140312 is an apocalyptic number.

It is an amenable number.

323221140312 is an abundant number, since it is smaller than the sum of its proper divisors (603008317608).

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

323221140312 is a wasteful number, since it uses less digits than its factorization.

323221140312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5709360 (or 5709356 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 323221140312 its reverse (213041122323), we get a palindrome (536262262635).

The spelling of 323221140312 in words is "three hundred twenty-three billion, two hundred twenty-one million, one hundred forty thousand, three hundred twelve".