12421424024 has 8 divisors (see below), whose sum is σ = 23290170060. Its totient is φ = 6210712008.

The previous prime is 12421424003. The next prime is 12421424033. The reversal of 12421424024 is 42042412421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 12421423984 and 12421424002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776338994 + ... + 776339009.

Almost surely, 2^12421424024 is an apocalyptic number.

It is an amenable number.

12421424024 is a deficient number, since it is larger than the sum of its proper divisors (10868746036).

12421424024 is a wasteful number, since it uses less digits than its factorization.

12421424024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552678009 (or 1552678005 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 12421424024 its reverse (42042412421), we get a palindrome (54463836445).

The spelling of 12421424024 in words is "twelve billion, four hundred twenty-one million, four hundred twenty-four thousand, twenty-four".