116565411121 has 2 divisors, whose sum is σ = 116565411122. Its totient is φ = 116565411120.

The previous prime is 116565411071. The next prime is 116565411229. The reversal of 116565411121 is 121114565611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82843230625 + 33722180496 = 287825^2 + 183636^2 .

It is a cyclic number.

It is not a de Polignac number, because 116565411121 - 2¹⁵ = 116565378353 is a prime.

It is not a weakly prime, because it can be changed into another prime (116569411121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58282705560 + 58282705561.

It is an arithmetic number, because the mean of its divisors is an integer number (58282705561).

Almost surely, 2^116565411121 is an apocalyptic number.

It is an amenable number.

116565411121 is a deficient number, since it is larger than the sum of its proper divisors (1).

116565411121 is an equidigital number, since it uses as much as digits as its factorization.

116565411121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 34.

Adding to 116565411121 its reverse (121114565611), we get a palindrome (237679976732).

The spelling of 116565411121 in words is "one hundred sixteen billion, five hundred sixty-five million, four hundred eleven thousand, one hundred twenty-one".