1316243336543 has 4 divisors (see below), whose sum is σ = 1329275448888. Its totient is φ = 1303211224200.

The previous prime is 1316243336537. The next prime is 1316243336549. The reversal of 1316243336543 is 3456333426131.

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

It is an interprime number because it is at equal distance from previous prime (1316243336537) and next prime (1316243336549).

It is a cyclic number.

It is not a de Polignac number, because 1316243336543 - 2³⁰ = 1315169594719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1316243336494 and 1316243336503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316243336549) 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, 6516056021 + ... + 6516056222.

It is an arithmetic number, because the mean of its divisors is an integer number (332318862222).

Almost surely, 2^{1316243336543} is an apocalyptic number.

1316243336543 is a deficient number, since it is larger than the sum of its proper divisors (13032112345).

1316243336543 is a wasteful number, since it uses less digits than its factorization.

1316243336543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13032112344.

The product of its digits is 1399680, while the sum is 44.

The spelling of 1316243336543 in words is "one trillion, three hundred sixteen billion, two hundred forty-three million, three hundred thirty-six thousand, five hundred forty-three".