323020311012 has 144 divisors (see below), whose sum is σ = 958730223360. Its totient is φ = 89765335296.

The previous prime is 323020310983. The next prime is 323020311017. The reversal of 323020311012 is 210113020323.

323020311012 is a `hidden beast` number, since 323 + 0 + 20 + 311 + 0 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (323020311017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40993689 + ... + 41001567.

Almost surely, 2^323020311012 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 323020311012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479365111680).

323020311012 is an abundant number, since it is smaller than the sum of its proper divisors (635709912348).

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

323020311012 is a wasteful number, since it uses less digits than its factorization.

323020311012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12330 (or 12325 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 323020311012 its reverse (210113020323), we get a palindrome (533133331335).

The spelling of 323020311012 in words is "three hundred twenty-three billion, twenty million, three hundred eleven thousand, twelve".