13043117 has 2 divisors, whose sum is σ = 13043118. Its totient is φ = 13043116.

The previous prime is 13043087. The next prime is 13043119. The reversal of 13043117 is 71134031.

It is a happy number.

13043117 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 can be written as a sum of positive squares in only one way, i.e., 9853321 + 3189796 = 3139^2 + 1786^2 .

It is a cyclic number.

It is not a de Polignac number, because 13043117 - 2⁶ = 13043053 is a prime.

Together with 13043119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13043119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6521558 + 6521559.

It is an arithmetic number, because the mean of its divisors is an integer number (6521559).

Almost surely, 2^13043117 is an apocalyptic number.

It is an amenable number.

13043117 is a deficient number, since it is larger than the sum of its proper divisors (1).

13043117 is an equidigital number, since it uses as much as digits as its factorization.

13043117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 13043117 is about 3611.5255779241. The cubic root of 13043117 is about 235.3931370258.

Adding to 13043117 its reverse (71134031), we get a palindrome (84177148).

The spelling of 13043117 in words is "thirteen million, forty-three thousand, one hundred seventeen".