12663331171 has 2 divisors, whose sum is σ = 12663331172. Its totient is φ = 12663331170.

The previous prime is 12663331061. The next prime is 12663331201. The reversal of 12663331171 is 17113336621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12663331171 is a prime.

It is not a weakly prime, because it can be changed into another prime (12663334171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331665585 + 6331665586.

It is an arithmetic number, because the mean of its divisors is an integer number (6331665586).

Almost surely, 2^12663331171 is an apocalyptic number.

12663331171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12663331171 is an equidigital number, since it uses as much as digits as its factorization.

12663331171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 34.

Adding to 12663331171 its reverse (17113336621), we get a palindrome (29776667792).

The spelling of 12663331171 in words is "twelve billion, six hundred sixty-three million, three hundred thirty-one thousand, one hundred seventy-one".