12558001117 has 2 divisors, whose sum is σ = 12558001118. Its totient is φ = 12558001116.

The previous prime is 12558001103. The next prime is 12558001153. The reversal of 12558001117 is 71110085521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6797342916 + 5760658201 = 82446^2 + 75899^2 .

It is a cyclic number.

It is not a de Polignac number, because 12558001117 - 2¹⁵ = 12557968349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12558001187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6279000558 + 6279000559.

It is an arithmetic number, because the mean of its divisors is an integer number (6279000559).

Almost surely, 2^12558001117 is an apocalyptic number.

It is an amenable number.

12558001117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12558001117 is an equidigital number, since it uses as much as digits as its factorization.

12558001117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 31.

Adding to 12558001117 its reverse (71110085521), we get a palindrome (83668086638).

The spelling of 12558001117 in words is "twelve billion, five hundred fifty-eight million, one thousand, one hundred seventeen".