13227427261 has 2 divisors, whose sum is σ = 13227427262. Its totient is φ = 13227427260.

The previous prime is 13227427223. The next prime is 13227427267. The reversal of 13227427261 is 16272472231.

13227427261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8225401636 + 5002025625 = 90694^2 + 70725^2 .

It is a cyclic number.

It is not a de Polignac number, because 13227427261 - 2⁹ = 13227426749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13227427261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13227427267) 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, 6613713630 + 6613713631.

It is an arithmetic number, because the mean of its divisors is an integer number (6613713631).

Almost surely, 2^13227427261 is an apocalyptic number.

It is an amenable number.

13227427261 is a deficient number, since it is larger than the sum of its proper divisors (1).

13227427261 is an equidigital number, since it uses as much as digits as its factorization.

13227427261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 37.

Adding to 13227427261 its reverse (16272472231), we get a palindrome (29499899492).

The spelling of 13227427261 in words is "thirteen billion, two hundred twenty-seven million, four hundred twenty-seven thousand, two hundred sixty-one".