12445510117 has 2 divisors, whose sum is σ = 12445510118. Its totient is φ = 12445510116.

The previous prime is 12445510067. The next prime is 12445510157. The reversal of 12445510117 is 71101554421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9224834116 + 3220676001 = 96046^2 + 56751^2 .

It is a cyclic number.

It is not a de Polignac number, because 12445510117 - 2¹⁹ = 12444985829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12445510157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222755058 + 6222755059.

It is an arithmetic number, because the mean of its divisors is an integer number (6222755059).

Almost surely, 2^12445510117 is an apocalyptic number.

It is an amenable number.

12445510117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445510117 is an equidigital number, since it uses as much as digits as its factorization.

12445510117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 31.

The spelling of 12445510117 in words is "twelve billion, four hundred forty-five million, five hundred ten thousand, one hundred seventeen".