12271317 has 16 divisors (see below), whose sum is σ = 16693248. Its totient is φ = 8017200.

The previous prime is 12271313. The next prime is 12271333. The reversal of 12271317 is 71317221.

It is not a de Polignac number, because 12271317 - 2² = 12271313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12271313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46528 + ... + 46790.

It is an arithmetic number, because the mean of its divisors is an integer number (1043328).

Almost surely, 2^12271317 is an apocalyptic number.

It is an amenable number.

12271317 is a deficient number, since it is larger than the sum of its proper divisors (4421931).

12271317 is a wasteful number, since it uses less digits than its factorization.

12271317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520.

The product of its digits is 588, while the sum is 24.

The square root of 12271317 is about 3503.0439620422. The cubic root of 12271317 is about 230.6554523136.

Adding to 12271317 its reverse (71317221), we get a palindrome (83588538).

The spelling of 12271317 in words is "twelve million, two hundred seventy-one thousand, three hundred seventeen".