12021430132 has 12 divisors (see below), whose sum is σ = 21040533220. Its totient is φ = 6009849216.

The previous prime is 12021430067. The next prime is 12021430159. The reversal of 12021430132 is 23103412021.

It is a happy number.

12021430132 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 2 ways, for example, as 8821717776 + 3199712356 = 93924^2 + 56566^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 184707 + ... + 241162.

Almost surely, 2^12021430132 is an apocalyptic number.

It is an amenable number.

12021430132 is a deficient number, since it is larger than the sum of its proper divisors (9019103088).

12021430132 is a wasteful number, since it uses less digits than its factorization.

12021430132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432930 (or 432928 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12021430132 its reverse (23103412021), we get a palindrome (35124842153).

The spelling of 12021430132 in words is "twelve billion, twenty-one million, four hundred thirty thousand, one hundred thirty-two".