12530143117 has 2 divisors, whose sum is σ = 12530143118. Its totient is φ = 12530143116.

The previous prime is 12530143091. The next prime is 12530143147. The reversal of 12530143117 is 71134103521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11740589316 + 789553801 = 108354^2 + 28099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12530143117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12530143147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6265071558 + 6265071559.

It is an arithmetic number, because the mean of its divisors is an integer number (6265071559).

Almost surely, 2^12530143117 is an apocalyptic number.

It is an amenable number.

12530143117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12530143117 is an equidigital number, since it uses as much as digits as its factorization.

12530143117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

Adding to 12530143117 its reverse (71134103521), we get a palindrome (83664246638).

The spelling of 12530143117 in words is "twelve billion, five hundred thirty million, one hundred forty-three thousand, one hundred seventeen".