12421103313424 has 40 divisors (see below), whose sum is σ = 25917692458392. Its totient is φ = 5732688030720.

The previous prime is 12421103313413. The next prime is 12421103313523. The reversal of 12421103313424 is 42431330112421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 316743840000 + 12104359473424 = 562800^2 + 3479132^2 .

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, 8932452 + ... + 10228924.

Almost surely, 2^{12421103313424} is an apocalyptic number.

It is an amenable number.

12421103313424 is an abundant number, since it is smaller than the sum of its proper divisors (13496589144968).

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

12421103313424 is a wasteful number, since it uses less digits than its factorization.

12421103313424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342555 (or 1342549 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 12421103313424 its reverse (42431330112421), we get a palindrome (54852433425845).

The spelling of 12421103313424 in words is "twelve trillion, four hundred twenty-one billion, one hundred three million, three hundred thirteen thousand, four hundred twenty-four".