1013530543603 has 4 divisors (see below), whose sum is σ = 1019130160048. Its totient is φ = 1007930927160.

The previous prime is 1013530543591. The next prime is 1013530543621. The reversal of 1013530543603 is 3063450353101.

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 1013530543603 - 2³⁷ = 876091590131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013530541603) 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, 2799807951 + ... + 2799808312.

It is an arithmetic number, because the mean of its divisors is an integer number (254782540012).

Almost surely, 2^{1013530543603} is an apocalyptic number.

1013530543603 is a deficient number, since it is larger than the sum of its proper divisors (5599616445).

1013530543603 is an equidigital number, since it uses as much as digits as its factorization.

1013530543603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5599616444.

The product of its (nonzero) digits is 48600, while the sum is 34.

Adding to 1013530543603 its reverse (3063450353101), we get a palindrome (4076980896704).

The spelling of 1013530543603 in words is "one trillion, thirteen billion, five hundred thirty million, five hundred forty-three thousand, six hundred three".