12715721041 has 2 divisors, whose sum is σ = 12715721042. Its totient is φ = 12715721040.

The previous prime is 12715721033. The next prime is 12715721071. The reversal of 12715721041 is 14012751721.

12715721041 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., 9234249025 + 3481472016 = 96095^2 + 59004^2 .

It is a cyclic number.

It is not a de Polignac number, because 12715721041 - 2³ = 12715721033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12715720994 and 12715721012.

It is not a weakly prime, because it can be changed into another prime (12715721071) 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, 6357860520 + 6357860521.

It is an arithmetic number, because the mean of its divisors is an integer number (6357860521).

Almost surely, 2^12715721041 is an apocalyptic number.

It is an amenable number.

12715721041 is a deficient number, since it is larger than the sum of its proper divisors (1).

12715721041 is an equidigital number, since it uses as much as digits as its factorization.

12715721041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 31.

The spelling of 12715721041 in words is "twelve billion, seven hundred fifteen million, seven hundred twenty-one thousand, forty-one".