1311544400313 has 32 divisors (see below), whose sum is σ = 2042948505600. Its totient is φ = 732933835776.

The previous prime is 1311544400303. The next prime is 1311544400321. The reversal of 1311544400313 is 3130044451131.

It is not a de Polignac number, because 1311544400313 - 2⁴ = 1311544400297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311544400303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2503233 + ... + 2981486.

It is an arithmetic number, because the mean of its divisors is an integer number (63842140800).

Almost surely, 2^{1311544400313} is an apocalyptic number.

It is an amenable number.

1311544400313 is a deficient number, since it is larger than the sum of its proper divisors (731404105287).

1311544400313 is a wasteful number, since it uses less digits than its factorization.

1311544400313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5484981.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1311544400313 its reverse (3130044451131), we get a palindrome (4441588851444).

The spelling of 1311544400313 in words is "one trillion, three hundred eleven billion, five hundred forty-four million, four hundred thousand, three hundred thirteen".