13420251227 has 2 divisors, whose sum is σ = 13420251228. Its totient is φ = 13420251226.

The previous prime is 13420251223. The next prime is 13420251253. The reversal of 13420251227 is 72215202431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13420251227 - 2² = 13420251223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13420251227.

It is not a weakly prime, because it can be changed into another prime (13420251223) 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, 6710125613 + 6710125614.

It is an arithmetic number, because the mean of its divisors is an integer number (6710125614).

Almost surely, 2^13420251227 is an apocalyptic number.

13420251227 is a deficient number, since it is larger than the sum of its proper divisors (1).

13420251227 is an equidigital number, since it uses as much as digits as its factorization.

13420251227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 13420251227 its reverse (72215202431), we get a palindrome (85635453658).

The spelling of 13420251227 in words is "thirteen billion, four hundred twenty million, two hundred fifty-one thousand, two hundred twenty-seven".