1323143317 has 2 divisors, whose sum is σ = 1323143318. Its totient is φ = 1323143316.

The previous prime is 1323143293. The next prime is 1323143359. The reversal of 1323143317 is 7133413231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1310512401 + 12630916 = 36201^2 + 3554^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323143317 - 2⁷ = 1323143189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323141317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661571658 + 661571659.

It is an arithmetic number, because the mean of its divisors is an integer number (661571659).

Almost surely, 2^1323143317 is an apocalyptic number.

It is an amenable number.

1323143317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323143317 is an equidigital number, since it uses as much as digits as its factorization.

1323143317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 28.

The square root of 1323143317 is about 36375.0370034176. The cubic root of 1323143317 is about 1097.8313518414.

Adding to 1323143317 its reverse (7133413231), we get a palindrome (8456556548).

The spelling of 1323143317 in words is "one billion, three hundred twenty-three million, one hundred forty-three thousand, three hundred seventeen".