12511345417 has 2 divisors, whose sum is σ = 12511345418. Its totient is φ = 12511345416.

The previous prime is 12511345409. The next prime is 12511345453. The reversal of 12511345417 is 71454311521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12275753616 + 235591801 = 110796^2 + 15349^2 .

It is a cyclic number.

It is not a de Polignac number, because 12511345417 - 2³ = 12511345409 is a prime.

It is not a weakly prime, because it can be changed into another prime (12511345817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6255672708 + 6255672709.

It is an arithmetic number, because the mean of its divisors is an integer number (6255672709).

Almost surely, 2^12511345417 is an apocalyptic number.

It is an amenable number.

12511345417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12511345417 is an equidigital number, since it uses as much as digits as its factorization.

12511345417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 34.

Adding to 12511345417 its reverse (71454311521), we get a palindrome (83965656938).

The spelling of 12511345417 in words is "twelve billion, five hundred eleven million, three hundred forty-five thousand, four hundred seventeen".