12556135301 has 2 divisors, whose sum is σ = 12556135302. Its totient is φ = 12556135300.

The previous prime is 12556135261. The next prime is 12556135343. The reversal of 12556135301 is 10353165521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12440056225 + 116079076 = 111535^2 + 10774^2 .

It is a cyclic number.

It is not a de Polignac number, because 12556135301 - 2¹⁰ = 12556134277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12556135001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6278067650 + 6278067651.

It is an arithmetic number, because the mean of its divisors is an integer number (6278067651).

Almost surely, 2^12556135301 is an apocalyptic number.

It is an amenable number.

12556135301 is a deficient number, since it is larger than the sum of its proper divisors (1).

12556135301 is an equidigital number, since it uses as much as digits as its factorization.

12556135301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 32.

The spelling of 12556135301 in words is "twelve billion, five hundred fifty-six million, one hundred thirty-five thousand, three hundred one".