1311411056513 has 8 divisors (see below), whose sum is σ = 1327879303968. Its totient is φ = 1294958716704.

The previous prime is 1311411056509. The next prime is 1311411056519. The reversal of 1311411056513 is 3156501141131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311411056513 - 2² = 1311411056509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311411056513.

It is not an unprimeable number, because it can be changed into a prime (1311411056519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3810956 + ... + 4140797.

It is an arithmetic number, because the mean of its divisors is an integer number (165984912996).

Almost surely, 2^{1311411056513} is an apocalyptic number.

It is an amenable number.

1311411056513 is a deficient number, since it is larger than the sum of its proper divisors (16468247455).

1311411056513 is an equidigital number, since it uses as much as digits as its factorization.

1311411056513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7953823.

The product of its (nonzero) digits is 5400, while the sum is 32.

Adding to 1311411056513 its reverse (3156501141131), we get a palindrome (4467912197644).

The spelling of 1311411056513 in words is "one trillion, three hundred eleven billion, four hundred eleven million, fifty-six thousand, five hundred thirteen".