323303231220312 has 256 divisors, whose sum is σ = 929973682483200. Its totient is φ = 91749309120000.

The previous prime is 323303231220283. The next prime is 323303231220317. The reversal of 323303231220312 is 213022132303323.

It is a self number, because there is not a number n which added to its sum of digits gives 323303231220312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323303231220317) 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 63 ways as a sum of consecutive naturals, for example, 39528450639 + ... + 39528458817.

It is an arithmetic number, because the mean of its divisors is an integer number (3632709697200).

Almost surely, 2^{323303231220312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323303231220312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464986841241600).

323303231220312 is an abundant number, since it is smaller than the sum of its proper divisors (606670451262888).

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

323303231220312 is a wasteful number, since it uses less digits than its factorization.

323303231220312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10518 (or 10514 counting only the distinct ones).

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

Adding to 323303231220312 its reverse (213022132303323), we get a palindrome (536325363523635).

The spelling of 323303231220312 in words is "three hundred twenty-three trillion, three hundred three billion, two hundred thirty-one million, two hundred twenty thousand, three hundred twelve".