1161552012317 has 2 divisors, whose sum is σ = 1161552012318. Its totient is φ = 1161552012316.

The previous prime is 1161552012307. The next prime is 1161552012323. The reversal of 1161552012317 is 7132102551611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 898904987236 + 262647025081 = 948106^2 + 512491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1161552012317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161552012307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580776006158 + 580776006159.

It is an arithmetic number, because the mean of its divisors is an integer number (580776006159).

Almost surely, 2^{1161552012317} is an apocalyptic number.

It is an amenable number.

1161552012317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161552012317 is an equidigital number, since it uses as much as digits as its factorization.

1161552012317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 35.

Adding to 1161552012317 its reverse (7132102551611), we get a palindrome (8293654563928).

The spelling of 1161552012317 in words is "one trillion, one hundred sixty-one billion, five hundred fifty-two million, twelve thousand, three hundred seventeen".