12530311361 has 2 divisors, whose sum is σ = 12530311362. Its totient is φ = 12530311360.

The previous prime is 12530311333. The next prime is 12530311439. The reversal of 12530311361 is 16311303521.

12530311361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8934030400 + 3596280961 = 94520^2 + 59969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12530311361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12530311361.

It is not a weakly prime, because it can be changed into another prime (12530311961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6265155680 + 6265155681.

It is an arithmetic number, because the mean of its divisors is an integer number (6265155681).

Almost surely, 2^12530311361 is an apocalyptic number.

It is an amenable number.

12530311361 is a deficient number, since it is larger than the sum of its proper divisors (1).

12530311361 is an equidigital number, since it uses as much as digits as its factorization.

12530311361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

Adding to 12530311361 its reverse (16311303521), we get a palindrome (28841614882).

The spelling of 12530311361 in words is "twelve billion, five hundred thirty million, three hundred eleven thousand, three hundred sixty-one".