1331022317 has 2 divisors, whose sum is σ = 1331022318. Its totient is φ = 1331022316.

The previous prime is 1331022289. The next prime is 1331022331. The reversal of 1331022317 is 7132201331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1229133481 + 101888836 = 35059^2 + 10094^2 .

It is an emirp because it is prime and its reverse (7132201331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1331022317 - 2⁸ = 1331022061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1331022292 and 1331022301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331022347) 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, 665511158 + 665511159.

It is an arithmetic number, because the mean of its divisors is an integer number (665511159).

Almost surely, 2^1331022317 is an apocalyptic number.

It is an amenable number.

1331022317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331022317 is an equidigital number, since it uses as much as digits as its factorization.

1331022317 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 23.

The square root of 1331022317 is about 36483.1785484763. The cubic root of 1331022317 is about 1100.0061478995.

Adding to 1331022317 its reverse (7132201331), we get a palindrome (8463223648).

The spelling of 1331022317 in words is "one billion, three hundred thirty-one million, twenty-two thousand, three hundred seventeen".