1311040303819 has 2 divisors, whose sum is σ = 1311040303820. Its totient is φ = 1311040303818.

The previous prime is 1311040303801. The next prime is 1311040303849. The reversal of 1311040303819 is 9183030401131.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9183030401131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1311040303819 - 2⁵ = 1311040303787 is a prime.

It is a super-2 number, since 2×1311040303819² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1311040303849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655520151909 + 655520151910.

It is an arithmetic number, because the mean of its divisors is an integer number (655520151910).

Almost surely, 2^{1311040303819} is an apocalyptic number.

1311040303819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311040303819 is an equidigital number, since it uses as much as digits as its factorization.

1311040303819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 1311040303819 in words is "one trillion, three hundred eleven billion, forty million, three hundred three thousand, eight hundred nineteen".