1313530550543 has 4 divisors (see below), whose sum is σ = 1313541236640. Its totient is φ = 1313519864448.

The previous prime is 1313530550539. The next prime is 1313530550557. The reversal of 1313530550543 is 3450550353131.

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 1313530550543 - 2² = 1313530550539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313530550497 and 1313530550506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313530550503) 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, 5156498 + ... + 5405231.

It is an arithmetic number, because the mean of its divisors is an integer number (328385309160).

Almost surely, 2^{1313530550543} is an apocalyptic number.

1313530550543 is a deficient number, since it is larger than the sum of its proper divisors (10686097).

1313530550543 is a wasteful number, since it uses less digits than its factorization.

1313530550543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10686096.

The product of its (nonzero) digits is 202500, while the sum is 38.

The spelling of 1313530550543 in words is "one trillion, three hundred thirteen billion, five hundred thirty million, five hundred fifty thousand, five hundred forty-three".