12581356035097 has 2 divisors, whose sum is σ = 12581356035098. Its totient is φ = 12581356035096.

The previous prime is 12581356035077. The next prime is 12581356035109. The reversal of 12581356035097 is 79053065318521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10264981617801 + 2316374417296 = 3203901^2 + 1521964^2 .

It is a cyclic number.

It is not a de Polignac number, because 12581356035097 - 2¹⁵ = 12581356002329 is a prime.

It is not a weakly prime, because it can be changed into another prime (12581356035077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6290678017548 + 6290678017549.

It is an arithmetic number, because the mean of its divisors is an integer number (6290678017549).

Almost surely, 2^{12581356035097} is an apocalyptic number.

It is an amenable number.

12581356035097 is a deficient number, since it is larger than the sum of its proper divisors (1).

12581356035097 is an equidigital number, since it uses as much as digits as its factorization.

12581356035097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804000, while the sum is 55.

The spelling of 12581356035097 in words is "twelve trillion, five hundred eighty-one billion, three hundred fifty-six million, thirty-five thousand, ninety-seven".