12344133421 has 2 divisors, whose sum is σ = 12344133422. Its totient is φ = 12344133420.

The previous prime is 12344133409. The next prime is 12344133457. The reversal of 12344133421 is 12433144321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9022340196 + 3321793225 = 94986^2 + 57635^2 .

It is a cyclic number.

It is not a de Polignac number, because 12344133421 - 2¹⁵ = 12344100653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12344133421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12344133401) by changing a digit.

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, 6172066710 + 6172066711.

It is an arithmetic number, because the mean of its divisors is an integer number (6172066711).

Almost surely, 2^12344133421 is an apocalyptic number.

It is an amenable number.

12344133421 is a deficient number, since it is larger than the sum of its proper divisors (1).

12344133421 is an equidigital number, since it uses as much as digits as its factorization.

12344133421 is an odious number, because the sum of its binary digits is odd.

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

Adding to 12344133421 its reverse (12433144321), we get a palindrome (24777277742).

The spelling of 12344133421 in words is "twelve billion, three hundred forty-four million, one hundred thirty-three thousand, four hundred twenty-one".