13112171 has 4 divisors (see below), whose sum is σ = 13466592. Its totient is φ = 12757752.

The previous prime is 13112161. The next prime is 13112221. The reversal of 13112171 is 17121131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17121131 = 23 ⋅744397.

It is a cyclic number.

It is not a de Polignac number, because 13112171 - 2¹⁴ = 13095787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13112111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177155 + ... + 177228.

It is an arithmetic number, because the mean of its divisors is an integer number (3366648).

Almost surely, 2^13112171 is an apocalyptic number.

13112171 is a deficient number, since it is larger than the sum of its proper divisors (354421).

13112171 is an equidigital number, since it uses as much as digits as its factorization.

13112171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354420.

The product of its digits is 42, while the sum is 17.

The square root of 13112171 is about 3621.0731834637. The cubic root of 13112171 is about 235.8078189825.

The spelling of 13112171 in words is "thirteen million, one hundred twelve thousand, one hundred seventy-one".