11481101363509 has 2 divisors, whose sum is σ = 11481101363510. Its totient is φ = 11481101363508.

The previous prime is 11481101363503. The next prime is 11481101363521. The reversal of 11481101363509 is 90536310118411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9342326736484 + 2138774627025 = 3056522^2 + 1462455^2 .

It is a cyclic number.

It is not a de Polignac number, because 11481101363509 - 2⁴¹ = 9282078107957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11481101363503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5740550681754 + 5740550681755.

It is an arithmetic number, because the mean of its divisors is an integer number (5740550681755).

Almost surely, 2^{11481101363509} is an apocalyptic number.

It is an amenable number.

11481101363509 is a deficient number, since it is larger than the sum of its proper divisors (1).

11481101363509 is an equidigital number, since it uses as much as digits as its factorization.

11481101363509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 43.

The spelling of 11481101363509 in words is "eleven trillion, four hundred eighty-one billion, one hundred one million, three hundred sixty-three thousand, five hundred nine".