1311303023 has 2 divisors, whose sum is σ = 1311303024. Its totient is φ = 1311303022.

The previous prime is 1311303001. The next prime is 1311303053. The reversal of 1311303023 is 3203031131.

It is a weak prime.

It is an emirp because it is prime and its reverse (3203031131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1311303023 - 2¹⁸ = 1311040879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311302992 and 1311303010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311303053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655651511 + 655651512.

It is an arithmetic number, because the mean of its divisors is an integer number (655651512).

Almost surely, 2^1311303023 is an apocalyptic number.

1311303023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311303023 is an equidigital number, since it uses as much as digits as its factorization.

1311303023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1311303023 is about 36211.9182452408. The cubic root of 1311303023 is about 1094.5468466810.

Adding to 1311303023 its reverse (3203031131), we get a palindrome (4514334154).

The spelling of 1311303023 in words is "one billion, three hundred eleven million, three hundred three thousand, twenty-three".