13542231191 has 2 divisors, whose sum is σ = 13542231192. Its totient is φ = 13542231190.

The previous prime is 13542231163. The next prime is 13542231233. The reversal of 13542231191 is 19113224531.

13542231191 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 a de Polignac number, because none of the positive numbers 2^k-13542231191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13542231091) 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, 6771115595 + 6771115596.

It is an arithmetic number, because the mean of its divisors is an integer number (6771115596).

Almost surely, 2^13542231191 is an apocalyptic number.

13542231191 is a deficient number, since it is larger than the sum of its proper divisors (1).

13542231191 is an equidigital number, since it uses as much as digits as its factorization.

13542231191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The spelling of 13542231191 in words is "thirteen billion, five hundred forty-two million, two hundred thirty-one thousand, one hundred ninety-one".