1311310330013 has 4 divisors (see below), whose sum is σ = 1311318175068. Its totient is φ = 1311302484960.

The previous prime is 1311310329991. The next prime is 1311310330049. The reversal of 1311310330013 is 3100330131131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 442009566244 + 869300763769 = 664838^2 + 932363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311310330013 - 2⁸ = 1311310329757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311310330063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666218 + ... + 4007963.

It is an arithmetic number, because the mean of its divisors is an integer number (327829543767).

Almost surely, 2^{1311310330013} is an apocalyptic number.

It is an amenable number.

1311310330013 is a deficient number, since it is larger than the sum of its proper divisors (7845055).

1311310330013 is an equidigital number, since it uses as much as digits as its factorization.

1311310330013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7845054.

The product of its (nonzero) digits is 243, while the sum is 20.

Adding to 1311310330013 its reverse (3100330131131), we get a palindrome (4411640461144).

The spelling of 1311310330013 in words is "one trillion, three hundred eleven billion, three hundred ten million, three hundred thirty thousand, thirteen".