12001423532 has 12 divisors (see below), whose sum is σ = 24002847120. Its totient is φ = 5143467216.

The previous prime is 12001423519. The next prime is 12001423541. The reversal of 12001423532 is 23532410021.

12001423532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

12001423532 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 12001423498 and 12001423507.

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, 214311107 + ... + 214311162.

It is an arithmetic number, because the mean of its divisors is an integer number (2000237260).

Almost surely, 2^12001423532 is an apocalyptic number.

It is an amenable number.

12001423532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12001423532 is a wasteful number, since it uses less digits than its factorization.

12001423532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428622280 (or 428622278 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 12001423532 its reverse (23532410021), we get a palindrome (35533833553).

The spelling of 12001423532 in words is "twelve billion, one million, four hundred twenty-three thousand, five hundred thirty-two".