12421341434 has 16 divisors (see below), whose sum is σ = 18662620128. Its totient is φ = 6200479152.

The previous prime is 12421341377. The next prime is 12421341469. The reversal of 12421341434 is 43414312421.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12421341397 and 12421341406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5962157 + ... + 5964239.

It is an arithmetic number, because the mean of its divisors is an integer number (1166413758).

Almost surely, 2^12421341434 is an apocalyptic number.

12421341434 is a deficient number, since it is larger than the sum of its proper divisors (6241278694).

12421341434 is a wasteful number, since it uses less digits than its factorization.

12421341434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5549.

The product of its digits is 9216, while the sum is 29.

Adding to 12421341434 its reverse (43414312421), we get a palindrome (55835653855).

The spelling of 12421341434 in words is "twelve billion, four hundred twenty-one million, three hundred forty-one thousand, four hundred thirty-four".