13112347 has 2 divisors, whose sum is σ = 13112348. Its totient is φ = 13112346.

The previous prime is 13112329. The next prime is 13112353. The reversal of 13112347 is 74321131.

13112347 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13112347 is a prime.

It is not a weakly prime, because it can be changed into another prime (13112647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556173 + 6556174.

It is an arithmetic number, because the mean of its divisors is an integer number (6556174).

Almost surely, 2^13112347 is an apocalyptic number.

13112347 is a deficient number, since it is larger than the sum of its proper divisors (1).

13112347 is an equidigital number, since it uses as much as digits as its factorization.

13112347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 22.

The square root of 13112347 is about 3621.0974855698. The cubic root of 13112347 is about 235.8088740326.

Adding to 13112347 its reverse (74321131), we get a palindrome (87433478).

The spelling of 13112347 in words is "thirteen million, one hundred twelve thousand, three hundred forty-seven".