1123113132217 has 2 divisors, whose sum is σ = 1123113132218. Its totient is φ = 1123113132216.

The previous prime is 1123113132049. The next prime is 1123113132269. The reversal of 1123113132217 is 7122313113211.

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., 1114046474256 + 9066657961 = 1055484^2 + 95219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123113132217 is a prime.

It is a super-2 number, since 2×1123113132217² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123113172217) 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, 561556566108 + 561556566109.

It is an arithmetic number, because the mean of its divisors is an integer number (561556566109).

Almost surely, 2^{1123113132217} is an apocalyptic number.

It is an amenable number.

1123113132217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123113132217 is an equidigital number, since it uses as much as digits as its factorization.

1123113132217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 28.

Adding to 1123113132217 its reverse (7122313113211), we get a palindrome (8245426245428).

The spelling of 1123113132217 in words is "one trillion, one hundred twenty-three billion, one hundred thirteen million, one hundred thirty-two thousand, two hundred seventeen".