13243400087 has 2 divisors, whose sum is σ = 13243400088. Its totient is φ = 13243400086.

The previous prime is 13243400081. The next prime is 13243400117. The reversal of 13243400087 is 78000434231.

It is a weak prime.

It is an emirp because it is prime and its reverse (78000434231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13243400087 - 2⁸ = 13243399831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13243400081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6621700043 + 6621700044.

It is an arithmetic number, because the mean of its divisors is an integer number (6621700044).

Almost surely, 2^13243400087 is an apocalyptic number.

13243400087 is a deficient number, since it is larger than the sum of its proper divisors (1).

13243400087 is an equidigital number, since it uses as much as digits as its factorization.

13243400087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 13243400087 in words is "thirteen billion, two hundred forty-three million, four hundred thousand, eighty-seven".