1131223013117 has 2 divisors, whose sum is σ = 1131223013118. Its totient is φ = 1131223013116.

The previous prime is 1131223013087. The next prime is 1131223013149. The reversal of 1131223013117 is 7113103221311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1111392459076 + 19830554041 = 1054226^2 + 140821^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131223013117 - 2²⁰ = 1131221964541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131223013197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565611506558 + 565611506559.

It is an arithmetic number, because the mean of its divisors is an integer number (565611506559).

Almost surely, 2^{1131223013117} is an apocalyptic number.

It is an amenable number.

1131223013117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131223013117 is an equidigital number, since it uses as much as digits as its factorization.

1131223013117 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 1131223013117 its reverse (7113103221311), we get a palindrome (8244326234428).

The spelling of 1131223013117 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-three million, thirteen thousand, one hundred seventeen".