531542322143543 has 2 divisors, whose sum is σ = 531542322143544. Its totient is φ = 531542322143542.

The previous prime is 531542322143537. The next prime is 531542322143549. The reversal of 531542322143543 is 345341223245135.

It is a balanced prime because it is at equal distance from previous prime (531542322143537) and next prime (531542322143549).

It is a cyclic number.

It is not a de Polignac number, because 531542322143543 - 2²⁴ = 531542305366327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531542322143549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265771161071771 + 265771161071772.

It is an arithmetic number, because the mean of its divisors is an integer number (265771161071772).

Almost surely, 2^{531542322143543} is an apocalyptic number.

531542322143543 is a deficient number, since it is larger than the sum of its proper divisors (1).

531542322143543 is an equidigital number, since it uses as much as digits as its factorization.

531542322143543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184000, while the sum is 47.

Adding to 531542322143543 its reverse (345341223245135), we get a palindrome (876883545388678).

The spelling of 531542322143543 in words is "five hundred thirty-one trillion, five hundred forty-two billion, three hundred twenty-two million, one hundred forty-three thousand, five hundred forty-three".