1311443027 has 2 divisors, whose sum is σ = 1311443028. Its totient is φ = 1311443026.

The previous prime is 1311442999. The next prime is 1311443041. The reversal of 1311443027 is 7203441131.

It is a strong prime.

It is an emirp because it is prime and its reverse (7203441131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1311443027 - 2¹⁶ = 1311377491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311442987 and 1311443005.

It is not a weakly prime, because it can be changed into another prime (1311443047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655721513 + 655721514.

It is an arithmetic number, because the mean of its divisors is an integer number (655721514).

Almost surely, 2^1311443027 is an apocalyptic number.

1311443027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311443027 is an equidigital number, since it uses as much as digits as its factorization.

1311443027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1311443027 is about 36213.8513141036. The cubic root of 1311443027 is about 1094.5857991531.

Adding to 1311443027 its reverse (7203441131), we get a palindrome (8514884158).

The spelling of 1311443027 in words is "one billion, three hundred eleven million, four hundred forty-three thousand, twenty-seven".