12521606371 has 2 divisors, whose sum is σ = 12521606372. Its totient is φ = 12521606370.

The previous prime is 12521606333. The next prime is 12521606389. The reversal of 12521606371 is 17360612521.

12521606371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12521606371 - 2¹¹ = 12521604323 is a prime.

It is a super-2 number, since 2×12521606371² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12521606971) 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, 6260803185 + 6260803186.

It is an arithmetic number, because the mean of its divisors is an integer number (6260803186).

Almost surely, 2^12521606371 is an apocalyptic number.

12521606371 is a deficient number, since it is larger than the sum of its proper divisors (1).

12521606371 is an equidigital number, since it uses as much as digits as its factorization.

12521606371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 12521606371 in words is "twelve billion, five hundred twenty-one million, six hundred six thousand, three hundred seventy-one".