1042543024543 has 4 divisors (see below), whose sum is σ = 1078492784040. Its totient is φ = 1006593265048.

The previous prime is 1042543024507. The next prime is 1042543024561. The reversal of 1042543024543 is 3454203452401.

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 1042543024543 - 2¹⁷ = 1042542893471 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 (1042543024843) 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, 17974879705 + ... + 17974879762.

It is an arithmetic number, because the mean of its divisors is an integer number (269623196010).

Almost surely, 2^{1042543024543} is an apocalyptic number.

1042543024543 is a deficient number, since it is larger than the sum of its proper divisors (35949759497).

1042543024543 is an equidigital number, since it uses as much as digits as its factorization.

1042543024543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35949759496.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 1042543024543 its reverse (3454203452401), we get a palindrome (4496746476944).

The spelling of 1042543024543 in words is "one trillion, forty-two billion, five hundred forty-three million, twenty-four thousand, five hundred forty-three".