30020605912 has 64 divisors (see below), whose sum is σ = 62803123200. Its totient is φ = 13336055040.

The previous prime is 30020605897. The next prime is 30020605913. The reversal of 30020605912 is 21950602003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020605913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3068164 + ... + 3077932.

It is an arithmetic number, because the mean of its divisors is an integer number (981298800).

Almost surely, 2^30020605912 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 30020605912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31401561600).

30020605912 is an abundant number, since it is smaller than the sum of its proper divisors (32782517288).

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

30020605912 is a wasteful number, since it uses less digits than its factorization.

30020605912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10576 (or 10572 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 30020605912 in words is "thirty billion, twenty million, six hundred five thousand, nine hundred twelve".