1311446320463 has 4 divisors (see below), whose sum is σ = 1312440594960. Its totient is φ = 1310452045968.

The previous prime is 1311446320433. The next prime is 1311446320487. The reversal of 1311446320463 is 3640236441131.

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

It is a cyclic number.

It is not a de Polignac number, because 1311446320463 - 2⁶ = 1311446320399 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 (1311446320433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497135270 + ... + 497137907.

It is an arithmetic number, because the mean of its divisors is an integer number (328110148740).

Almost surely, 2^{1311446320463} is an apocalyptic number.

1311446320463 is a deficient number, since it is larger than the sum of its proper divisors (994274497).

1311446320463 is an equidigital number, since it uses as much as digits as its factorization.

1311446320463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994274496.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 1311446320463 in words is "one trillion, three hundred eleven billion, four hundred forty-six million, three hundred twenty thousand, four hundred sixty-three".