12424505421 has 8 divisors (see below), whose sum is σ = 16585431520. Its totient is φ = 8273291472.

The previous prime is 12424505419. The next prime is 12424505453. The reversal of 12424505421 is 12450542421.

12424505421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12424505421 - 2¹ = 12424505419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12424505521) 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 7 ways as a sum of consecutive naturals, for example, 2425051 + ... + 2430168.

It is an arithmetic number, because the mean of its divisors is an integer number (2073178940).

Almost surely, 2^12424505421 is an apocalyptic number.

It is an amenable number.

12424505421 is a deficient number, since it is larger than the sum of its proper divisors (4160926099).

12424505421 is an equidigital number, since it uses as much as digits as its factorization.

12424505421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4856075.

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 12424505421 in words is "twelve billion, four hundred twenty-four million, five hundred five thousand, four hundred twenty-one".