13231222171 has 2 divisors, whose sum is σ = 13231222172. Its totient is φ = 13231222170.

The previous prime is 13231222157. The next prime is 13231222181. The reversal of 13231222171 is 17122213231.

13231222171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13231222171 - 2³³ = 4641287579 is a prime.

It is not a weakly prime, because it can be changed into another prime (13231222181) 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, 6615611085 + 6615611086.

It is an arithmetic number, because the mean of its divisors is an integer number (6615611086).

Almost surely, 2^13231222171 is an apocalyptic number.

13231222171 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231222171 is an equidigital number, since it uses as much as digits as its factorization.

13231222171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 25.

The spelling of 13231222171 in words is "thirteen billion, two hundred thirty-one million, two hundred twenty-two thousand, one hundred seventy-one".