12421341433 has 4 divisors (see below), whose sum is σ = 12427227648. Its totient is φ = 12415455220.

The previous prime is 12421341377. The next prime is 12421341469. The reversal of 12421341433 is 33414312421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33414312421 = 7 ⋅4773473203.

It is a cyclic number.

It is not a de Polignac number, because 12421341433 - 2²¹ = 12419244281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12421321433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2939941 + ... + 2944162.

It is an arithmetic number, because the mean of its divisors is an integer number (3106806912).

Almost surely, 2^12421341433 is an apocalyptic number.

It is an amenable number.

12421341433 is a deficient number, since it is larger than the sum of its proper divisors (5886215).

12421341433 is an equidigital number, since it uses as much as digits as its factorization.

12421341433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5886214.

The product of its digits is 6912, while the sum is 28.

Adding to 12421341433 its reverse (33414312421), we get a palindrome (45835653854).

The spelling of 12421341433 in words is "twelve billion, four hundred twenty-one million, three hundred forty-one thousand, four hundred thirty-three".