1131023031317 has 2 divisors, whose sum is σ = 1131023031318. Its totient is φ = 1131023031316.

The previous prime is 1131023031311. The next prime is 1131023031343. The reversal of 1131023031317 is 7131303201311.

It is a happy number.

It is an a-pointer prime, because the next prime (1131023031343) can be obtained adding 1131023031317 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1038144983236 + 92878048081 = 1018894^2 + 304759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131023031317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131023031311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565511515658 + 565511515659.

It is an arithmetic number, because the mean of its divisors is an integer number (565511515659).

Almost surely, 2^{1131023031317} is an apocalyptic number.

It is an amenable number.

1131023031317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131023031317 is an equidigital number, since it uses as much as digits as its factorization.

1131023031317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 26.

Adding to 1131023031317 its reverse (7131303201311), we get a palindrome (8262326232628).

The spelling of 1131023031317 in words is "one trillion, one hundred thirty-one billion, twenty-three million, thirty-one thousand, three hundred seventeen".