12661498301 has 2 divisors, whose sum is σ = 12661498302. Its totient is φ = 12661498300.

The previous prime is 12661498279. The next prime is 12661498303. The reversal of 12661498301 is 10389416621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12366552025 + 294946276 = 111205^2 + 17174^2 .

It is an emirp because it is prime and its reverse (10389416621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12661498301 is a prime.

Together with 12661498303, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12661498303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6330749150 + 6330749151.

It is an arithmetic number, because the mean of its divisors is an integer number (6330749151).

Almost surely, 2^12661498301 is an apocalyptic number.

It is an amenable number.

12661498301 is a deficient number, since it is larger than the sum of its proper divisors (1).

12661498301 is an equidigital number, since it uses as much as digits as its factorization.

12661498301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 12661498301 in words is "twelve billion, six hundred sixty-one million, four hundred ninety-eight thousand, three hundred one".