1171173313 has 2 divisors, whose sum is σ = 1171173314. Its totient is φ = 1171173312.

The previous prime is 1171173287. The next prime is 1171173337. The reversal of 1171173313 is 3133711711.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1170187264 + 986049 = 34208^2 + 993^2 .

It is a cyclic number.

It is not a de Polignac number, because 1171173313 - 2¹⁷ = 1171042241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1171176313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585586656 + 585586657.

It is an arithmetic number, because the mean of its divisors is an integer number (585586657).

Almost surely, 2^1171173313 is an apocalyptic number.

It is an amenable number.

1171173313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1171173313 is an equidigital number, since it uses as much as digits as its factorization.

1171173313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1323, while the sum is 28.

The square root of 1171173313 is about 34222.4095148194. The cubic root of 1171173313 is about 1054.0803626853.

The spelling of 1171173313 in words is "one billion, one hundred seventy-one million, one hundred seventy-three thousand, three hundred thirteen".