12421403024443 has 48 divisors (see below), whose sum is σ = 14596222443264. Its totient is φ = 10539339814080.

The previous prime is 12421403024441. The next prime is 12421403024477. The reversal of 12421403024443 is 34442030412421.

It is not a de Polignac number, because 12421403024443 - 2¹ = 12421403024441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12421403024399 and 12421403024408.

It is not an unprimeable number, because it can be changed into a prime (12421403024441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2402125248 + ... + 2402130418.

It is an arithmetic number, because the mean of its divisors is an integer number (304087967568).

Almost surely, 2^{12421403024443} is an apocalyptic number.

12421403024443 is a deficient number, since it is larger than the sum of its proper divisors (2174819418821).

12421403024443 is a wasteful number, since it uses less digits than its factorization.

12421403024443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6512 (or 6505 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 12421403024443 its reverse (34442030412421), we get a palindrome (46863433436864).

The spelling of 12421403024443 in words is "twelve trillion, four hundred twenty-one billion, four hundred three million, twenty-four thousand, four hundred forty-three".