1311324097 has 2 divisors, whose sum is σ = 1311324098. Its totient is φ = 1311324096.

The previous prime is 1311324089. The next prime is 1311324103. The reversal of 1311324097 is 7904231131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1019461041 + 291863056 = 31929^2 + 17084^2 .

It is an emirp because it is prime and its reverse (7904231131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1311324097 - 2³ = 1311324089 is a prime.

It is a super-3 number, since 3×1311324097³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1311325097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655662048 + 655662049.

It is an arithmetic number, because the mean of its divisors is an integer number (655662049).

Almost surely, 2^1311324097 is an apocalyptic number.

It is an amenable number.

1311324097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311324097 is an equidigital number, since it uses as much as digits as its factorization.

1311324097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1311324097 is about 36212.2092256189. The cubic root of 1311324097 is about 1094.5527101507.

The spelling of 1311324097 in words is "one billion, three hundred eleven million, three hundred twenty-four thousand, ninety-seven".