12421453133 has 2 divisors, whose sum is σ = 12421453134. Its totient is φ = 12421453132.

The previous prime is 12421453123. The next prime is 12421453157. The reversal of 12421453133 is 33135412421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12361437124 + 60016009 = 111182^2 + 7747^2 .

It is an emirp because it is prime and its reverse (33135412421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12421453133 - 2⁶ = 12421453069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12421453096 and 12421453105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12421453103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210726566 + 6210726567.

It is an arithmetic number, because the mean of its divisors is an integer number (6210726567).

Almost surely, 2^12421453133 is an apocalyptic number.

It is an amenable number.

12421453133 is a deficient number, since it is larger than the sum of its proper divisors (1).

12421453133 is an equidigital number, since it uses as much as digits as its factorization.

12421453133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

Adding to 12421453133 its reverse (33135412421), we get a palindrome (45556865554).

The spelling of 12421453133 in words is "twelve billion, four hundred twenty-one million, four hundred fifty-three thousand, one hundred thirty-three".