1115231017 has 2 divisors, whose sum is σ = 1115231018. Its totient is φ = 1115231016.

The previous prime is 1115231003. The next prime is 1115231027. The reversal of 1115231017 is 7101325111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 946854441 + 168376576 = 30771^2 + 12976^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115231017 - 2²⁷ = 981013289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115231027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557615508 + 557615509.

It is an arithmetic number, because the mean of its divisors is an integer number (557615509).

Almost surely, 2^1115231017 is an apocalyptic number.

It is an amenable number.

1115231017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115231017 is an equidigital number, since it uses as much as digits as its factorization.

1115231017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 22.

The square root of 1115231017 is about 33395.0747416442. The cubic root of 1115231017 is about 1037.0227402226.

Adding to 1115231017 its reverse (7101325111), we get a palindrome (8216556128).

The spelling of 1115231017 in words is "one billion, one hundred fifteen million, two hundred thirty-one thousand, seventeen".