543351442121 has 2 divisors, whose sum is σ = 543351442122. Its totient is φ = 543351442120.

The previous prime is 543351442103. The next prime is 543351442141. The reversal of 543351442121 is 121244153345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 294984765625 + 248366676496 = 543125^2 + 498364^2 .

It is a cyclic number.

It is not a de Polignac number, because 543351442121 - 2²⁶ = 543284333257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (543351442141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271675721060 + 271675721061.

It is an arithmetic number, because the mean of its divisors is an integer number (271675721061).

Almost surely, 2^543351442121 is an apocalyptic number.

It is an amenable number.

543351442121 is a deficient number, since it is larger than the sum of its proper divisors (1).

543351442121 is an equidigital number, since it uses as much as digits as its factorization.

543351442121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 35.

Adding to 543351442121 its reverse (121244153345), we get a palindrome (664595595466).

The spelling of 543351442121 in words is "five hundred forty-three billion, three hundred fifty-one million, four hundred forty-two thousand, one hundred twenty-one".