12132421451 has 2 divisors, whose sum is σ = 12132421452. Its totient is φ = 12132421450.

The previous prime is 12132421447. The next prime is 12132421513. The reversal of 12132421451 is 15412423121.

It is a happy number.

12132421451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12132421451 - 2² = 12132421447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12132421451.

It is not a weakly prime, because it can be changed into another prime (12132421351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066210725 + 6066210726.

It is an arithmetic number, because the mean of its divisors is an integer number (6066210726).

Almost surely, 2^12132421451 is an apocalyptic number.

12132421451 is a deficient number, since it is larger than the sum of its proper divisors (1).

12132421451 is an equidigital number, since it uses as much as digits as its factorization.

12132421451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 26.

Adding to 12132421451 its reverse (15412423121), we get a palindrome (27544844572).

The spelling of 12132421451 in words is "twelve billion, one hundred thirty-two million, four hundred twenty-one thousand, four hundred fifty-one".