13187923211 has 2 divisors, whose sum is σ = 13187923212. Its totient is φ = 13187923210.

The previous prime is 13187923207. The next prime is 13187923289. The reversal of 13187923211 is 11232978131.

13187923211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13187923211 - 2² = 13187923207 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13187923201) 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, 6593961605 + 6593961606.

It is an arithmetic number, because the mean of its divisors is an integer number (6593961606).

Almost surely, 2^13187923211 is an apocalyptic number.

13187923211 is a deficient number, since it is larger than the sum of its proper divisors (1).

13187923211 is an equidigital number, since it uses as much as digits as its factorization.

13187923211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 38.

The spelling of 13187923211 in words is "thirteen billion, one hundred eighty-seven million, nine hundred twenty-three thousand, two hundred eleven".