1131220230317 has 2 divisors, whose sum is σ = 1131220230318. Its totient is φ = 1131220230316.

The previous prime is 1131220230253. The next prime is 1131220230323. The reversal of 1131220230317 is 7130320221311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1129503453961 + 1716776356 = 1062781^2 + 41434^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131220230317 - 2⁶ = 1131220230253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131220830317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565610115158 + 565610115159.

It is an arithmetic number, because the mean of its divisors is an integer number (565610115159).

Almost surely, 2^{1131220230317} is an apocalyptic number.

It is an amenable number.

1131220230317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131220230317 is an equidigital number, since it uses as much as digits as its factorization.

1131220230317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 1131220230317 its reverse (7130320221311), we get a palindrome (8261540451628).

The spelling of 1131220230317 in words is "one trillion, one hundred thirty-one billion, two hundred twenty million, two hundred thirty thousand, three hundred seventeen".