13243732247 has 2 divisors, whose sum is σ = 13243732248. Its totient is φ = 13243732246.

The previous prime is 13243732217. The next prime is 13243732253. The reversal of 13243732247 is 74223734231.

It is a strong prime.

It is an emirp because it is prime and its reverse (74223734231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13243732247 - 2²² = 13239537943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13243732247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13243732217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6621866123 + 6621866124.

It is an arithmetic number, because the mean of its divisors is an integer number (6621866124).

Almost surely, 2^13243732247 is an apocalyptic number.

13243732247 is a deficient number, since it is larger than the sum of its proper divisors (1).

13243732247 is an equidigital number, since it uses as much as digits as its factorization.

13243732247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 38.

The spelling of 13243732247 in words is "thirteen billion, two hundred forty-three million, seven hundred thirty-two thousand, two hundred forty-seven".