13247319427 has 2 divisors, whose sum is σ = 13247319428. Its totient is φ = 13247319426.

The previous prime is 13247319347. The next prime is 13247319433. The reversal of 13247319427 is 72491374231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13247319427 - 2³¹ = 11099835779 is a prime.

It is not a weakly prime, because it can be changed into another prime (13247319487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6623659713 + 6623659714.

It is an arithmetic number, because the mean of its divisors is an integer number (6623659714).

Almost surely, 2^13247319427 is an apocalyptic number.

13247319427 is a deficient number, since it is larger than the sum of its proper divisors (1).

13247319427 is an equidigital number, since it uses as much as digits as its factorization.

13247319427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 43.

The spelling of 13247319427 in words is "thirteen billion, two hundred forty-seven million, three hundred nineteen thousand, four hundred twenty-seven".