30020320212 has 24 divisors (see below), whose sum is σ = 71755888512. Its totient is φ = 9762705600.

The previous prime is 30020320163. The next prime is 30020320219. The reversal of 30020320212 is 21202302003.

It is a junction number, because it is equal to n+sod(n) for n = 30020320191 and 30020320200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020320219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30507964 + ... + 30508947.

It is an arithmetic number, because the mean of its divisors is an integer number (2989828688).

Almost surely, 2^30020320212 is an apocalyptic number.

It is an amenable number.

30020320212 is an abundant number, since it is smaller than the sum of its proper divisors (41735568300).

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

30020320212 is a wasteful number, since it uses less digits than its factorization.

30020320212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61016959 (or 61016957 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 30020320212 its reverse (21202302003), we get a palindrome (51222622215).

The spelling of 30020320212 in words is "thirty billion, twenty million, three hundred twenty thousand, two hundred twelve".