20330323212 has 96 divisors (see below), whose sum is σ = 50205355200. Its totient is φ = 6393167872.

The previous prime is 20330323163. The next prime is 20330323271. The reversal of 20330323212 is 21232303302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4737964 + ... + 4742252.

It is an arithmetic number, because the mean of its divisors is an integer number (522972450).

Almost surely, 2^20330323212 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 20330323212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25102677600).

20330323212 is an abundant number, since it is smaller than the sum of its proper divisors (29875031988).

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

20330323212 is a wasteful number, since it uses less digits than its factorization.

20330323212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4635 (or 4633 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20330323212 its reverse (21232303302), we get a palindrome (41562626514).

The spelling of 20330323212 in words is "twenty billion, three hundred thirty million, three hundred twenty-three thousand, two hundred twelve".