12030728944 has 20 divisors (see below), whose sum is σ = 25102579096. Its totient is φ = 5552644032.

The previous prime is 12030728893. The next prime is 12030728947. The reversal of 12030728944 is 44982703021.

12030728944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12030728897 and 12030728906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030728947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28919814 + ... + 28920229.

Almost surely, 2^12030728944 is an apocalyptic number.

It is an amenable number.

12030728944 is an abundant number, since it is smaller than the sum of its proper divisors (13071850152).

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

12030728944 is a wasteful number, since it uses less digits than its factorization.

12030728944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57840064 (or 57840058 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 12030728944 in words is "twelve billion, thirty million, seven hundred twenty-eight thousand, nine hundred forty-four".