1123113213017 has 2 divisors, whose sum is σ = 1123113213018. Its totient is φ = 1123113213016.

The previous prime is 1123113212993. The next prime is 1123113213109. The reversal of 1123113213017 is 7103123113211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1108179395401 + 14933817616 = 1052701^2 + 122204^2 .

It is an emirp because it is prime and its reverse (7103123113211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123113213017 - 2⁶ = 1123113212953 is a prime.

It is a super-2 number, since 2×1123113213017² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123113213517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561556606508 + 561556606509.

It is an arithmetic number, because the mean of its divisors is an integer number (561556606509).

Almost surely, 2^{1123113213017} is an apocalyptic number.

It is an amenable number.

1123113213017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123113213017 is an equidigital number, since it uses as much as digits as its factorization.

1123113213017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

Adding to 1123113213017 its reverse (7103123113211), we get a palindrome (8226236326228).

The spelling of 1123113213017 in words is "one trillion, one hundred twenty-three billion, one hundred thirteen million, two hundred thirteen thousand, seventeen".