11365513975073 has 2 divisors, whose sum is σ = 11365513975074. Its totient is φ = 11365513975072.

The previous prime is 11365513975063. The next prime is 11365513975093. The reversal of 11365513975073 is 37057931556311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11071437700129 + 294076274944 = 3327377^2 + 542288^2 .

It is an emirp because it is prime and its reverse (37057931556311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11365513975073 - 2¹⁸ = 11365513712929 is a prime.

It is not a weakly prime, because it can be changed into another prime (11365513975003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5682756987536 + 5682756987537.

It is an arithmetic number, because the mean of its divisors is an integer number (5682756987537).

Almost surely, 2^{11365513975073} is an apocalyptic number.

It is an amenable number.

11365513975073 is a deficient number, since it is larger than the sum of its proper divisors (1).

11365513975073 is an equidigital number, since it uses as much as digits as its factorization.

11365513975073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8930250, while the sum is 56.

The spelling of 11365513975073 in words is "eleven trillion, three hundred sixty-five billion, five hundred thirteen million, nine hundred seventy-five thousand, seventy-three".