12541132817 has 2 divisors, whose sum is σ = 12541132818. Its totient is φ = 12541132816.

The previous prime is 12541132777. The next prime is 12541132861. The reversal of 12541132817 is 71823114521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10590673921 + 1950458896 = 102911^2 + 44164^2 .

It is a cyclic number.

It is not a de Polignac number, because 12541132817 - 2⁶ = 12541132753 is a prime.

It is not a weakly prime, because it can be changed into another prime (12541132117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6270566408 + 6270566409.

It is an arithmetic number, because the mean of its divisors is an integer number (6270566409).

Almost surely, 2^12541132817 is an apocalyptic number.

It is an amenable number.

12541132817 is a deficient number, since it is larger than the sum of its proper divisors (1).

12541132817 is an equidigital number, since it uses as much as digits as its factorization.

12541132817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 35.

The spelling of 12541132817 in words is "twelve billion, five hundred forty-one million, one hundred thirty-two thousand, eight hundred seventeen".