1117213536161 has 2 divisors, whose sum is σ = 1117213536162. Its totient is φ = 1117213536160.

The previous prime is 1117213536091. The next prime is 1117213536163. The reversal of 1117213536161 is 1616353127111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1114779100561 + 2434435600 = 1055831^2 + 49340^2 .

It is an emirp because it is prime and its reverse (1616353127111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117213536161 is a prime.

It is a Sophie Germain prime.

Together with 1117213536163, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1117213536163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558606768080 + 558606768081.

It is an arithmetic number, because the mean of its divisors is an integer number (558606768081).

Almost surely, 2^{1117213536161} is an apocalyptic number.

It is an amenable number.

1117213536161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117213536161 is an equidigital number, since it uses as much as digits as its factorization.

1117213536161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 38.

The spelling of 1117213536161 in words is "one trillion, one hundred seventeen billion, two hundred thirteen million, five hundred thirty-six thousand, one hundred sixty-one".