1181711827073 has 2 divisors, whose sum is σ = 1181711827074. Its totient is φ = 1181711827072.

The previous prime is 1181711827007. The next prime is 1181711827091. The reversal of 1181711827073 is 3707281171811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1084072451344 + 97639375729 = 1041188^2 + 312473^2 .

It is a cyclic number.

It is not a de Polignac number, because 1181711827073 - 2²⁶ = 1181644718209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1181711827273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590855913536 + 590855913537.

It is an arithmetic number, because the mean of its divisors is an integer number (590855913537).

Almost surely, 2^{1181711827073} is an apocalyptic number.

It is an amenable number.

1181711827073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1181711827073 is an equidigital number, since it uses as much as digits as its factorization.

1181711827073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131712, while the sum is 47.

Adding to 1181711827073 its reverse (3707281171811), we get a palindrome (4888992998884).

The spelling of 1181711827073 in words is "one trillion, one hundred eighty-one billion, seven hundred eleven million, eight hundred twenty-seven thousand, seventy-three".