1173122317 has 2 divisors, whose sum is σ = 1173122318. Its totient is φ = 1173122316.

The previous prime is 1173122287. The next prime is 1173122323. The reversal of 1173122317 is 7132213711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 827943076 + 345179241 = 28774^2 + 18579^2 .

It is a cyclic number.

It is not a de Polignac number, because 1173122317 - 2¹¹ = 1173120269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1173122347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586561158 + 586561159.

It is an arithmetic number, because the mean of its divisors is an integer number (586561159).

Almost surely, 2^1173122317 is an apocalyptic number.

It is an amenable number.

1173122317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1173122317 is an equidigital number, since it uses as much as digits as its factorization.

1173122317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 28.

The square root of 1173122317 is about 34250.8732297441. The cubic root of 1173122317 is about 1054.6647533590.

The spelling of 1173122317 in words is "one billion, one hundred seventy-three million, one hundred twenty-two thousand, three hundred seventeen".