543234505021 has 8 divisors (see below), whose sum is σ = 585573176664. Its totient is φ = 500974605120.

The previous prime is 543234504991. The next prime is 543234505027. The reversal of 543234505021 is 120505432345.

It can be written as a sum of positive squares in 4 ways, for example, as 6259183225 + 536975321796 = 79115^2 + 732786^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 543234505021 - 2¹¹ = 543234502973 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 (543234505027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19678606 + ... + 19706191.

It is an arithmetic number, because the mean of its divisors is an integer number (73196647083).

Almost surely, 2^543234505021 is an apocalyptic number.

It is an amenable number.

543234505021 is a deficient number, since it is larger than the sum of its proper divisors (42338671643).

543234505021 is a wasteful number, since it uses less digits than its factorization.

543234505021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39385871.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 543234505021 its reverse (120505432345), we get a palindrome (663739937366).

The spelling of 543234505021 in words is "five hundred forty-three billion, two hundred thirty-four million, five hundred five thousand, twenty-one".