12104021530 has 16 divisors (see below), whose sum is σ = 21804705000. Its totient is φ = 4837727232.

The previous prime is 12104021509. The next prime is 12104021549. The reversal of 12104021530 is 3512040121.

12104021530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11847669409 + 256352121 = 108847^2 + 16011^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12104021498 and 12104021507.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 472059 + ... + 497038.

Almost surely, 2^12104021530 is an apocalyptic number.

12104021530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12104021530 is a deficient number, since it is larger than the sum of its proper divisors (9700683470).

12104021530 is a wasteful number, since it uses less digits than its factorization.

12104021530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970353.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 12104021530 its reverse (3512040121), we get a palindrome (15616061651).

The spelling of 12104021530 in words is "twelve billion, one hundred four million, twenty-one thousand, five hundred thirty".