12270317 has 2 divisors, whose sum is σ = 12270318. Its totient is φ = 12270316.

The previous prime is 12270301. The next prime is 12270319. The reversal of 12270317 is 71307221.

12270317 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11485321 + 784996 = 3389^2 + 886^2 .

It is an emirp because it is prime and its reverse (71307221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12270317 - 2⁴ = 12270301 is a prime.

Together with 12270319, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12270292 and 12270301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12270319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6135158 + 6135159.

It is an arithmetic number, because the mean of its divisors is an integer number (6135159).

Almost surely, 2^12270317 is an apocalyptic number.

It is an amenable number.

12270317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12270317 is an equidigital number, since it uses as much as digits as its factorization.

12270317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 12270317 is about 3502.9012261267. The cubic root of 12270317 is about 230.6491867074.

Adding to 12270317 its reverse (71307221), we get a palindrome (83577538).

The spelling of 12270317 in words is "twelve million, two hundred seventy thousand, three hundred seventeen".