11301477661 has 2 divisors, whose sum is σ = 11301477662. Its totient is φ = 11301477660.

The previous prime is 11301477587. The next prime is 11301477703. The reversal of 11301477661 is 16677410311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8670403225 + 2631074436 = 93115^2 + 51294^2 .

It is an emirp because it is prime and its reverse (16677410311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11301477661 - 2¹¹ = 11301475613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11301477661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11301477361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5650738830 + 5650738831.

It is an arithmetic number, because the mean of its divisors is an integer number (5650738831).

Almost surely, 2^11301477661 is an apocalyptic number.

It is an amenable number.

11301477661 is a deficient number, since it is larger than the sum of its proper divisors (1).

11301477661 is an equidigital number, since it uses as much as digits as its factorization.

11301477661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

Adding to 11301477661 its reverse (16677410311), we get a palindrome (27978887972).

The spelling of 11301477661 in words is "eleven billion, three hundred one million, four hundred seventy-seven thousand, six hundred sixty-one".