1178322997171 has 2 divisors, whose sum is σ = 1178322997172. Its totient is φ = 1178322997170.

The previous prime is 1178322997151. The next prime is 1178322997237. The reversal of 1178322997171 is 1717992238711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1178322997171 - 2⁵ = 1178322997139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1178322997151) 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, 589161498585 + 589161498586.

It is an arithmetic number, because the mean of its divisors is an integer number (589161498586).

Almost surely, 2^{1178322997171} is an apocalyptic number.

1178322997171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1178322997171 is an equidigital number, since it uses as much as digits as its factorization.

1178322997171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2667168, while the sum is 58.

The spelling of 1178322997171 in words is "one trillion, one hundred seventy-eight billion, three hundred twenty-two million, nine hundred ninety-seven thousand, one hundred seventy-one".