1130531543 has 2 divisors, whose sum is σ = 1130531544. Its totient is φ = 1130531542.

The previous prime is 1130531531. The next prime is 1130531557. The reversal of 1130531543 is 3451350311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1130531543 - 2²⁰ = 1129482967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1130531573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565265771 + 565265772.

It is an arithmetic number, because the mean of its divisors is an integer number (565265772).

Almost surely, 2^1130531543 is an apocalyptic number.

1130531543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130531543 is an equidigital number, since it uses as much as digits as its factorization.

1130531543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1130531543 is about 33623.3779237006. The cubic root of 1130531543 is about 1041.7437287529.

Adding to 1130531543 its reverse (3451350311), we get a palindrome (4581881854).

The spelling of 1130531543 in words is "one billion, one hundred thirty million, five hundred thirty-one thousand, five hundred forty-three".