12505135067 has 2 divisors, whose sum is σ = 12505135068. Its totient is φ = 12505135066.

The previous prime is 12505135063. The next prime is 12505135087. The reversal of 12505135067 is 76053150521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12505135067 - 2² = 12505135063 is a prime.

It is not a weakly prime, because it can be changed into another prime (12505135063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6252567533 + 6252567534.

It is an arithmetic number, because the mean of its divisors is an integer number (6252567534).

Almost surely, 2^12505135067 is an apocalyptic number.

12505135067 is a deficient number, since it is larger than the sum of its proper divisors (1).

12505135067 is an equidigital number, since it uses as much as digits as its factorization.

12505135067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 35.

Adding to 12505135067 its reverse (76053150521), we get a palindrome (88558285588).

The spelling of 12505135067 in words is "twelve billion, five hundred five million, one hundred thirty-five thousand, sixty-seven".