543423101421 has 16 divisors (see below), whose sum is σ = 726000105600. Its totient is φ = 361564767168.

The previous prime is 543423101341. The next prime is 543423101461. The reversal of 543423101421 is 124101324345.

It is not a de Polignac number, because 543423101421 - 2⁷ = 543423101293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543423101461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3129675 + ... + 3298743.

It is an arithmetic number, because the mean of its divisors is an integer number (45375006600).

Almost surely, 2^543423101421 is an apocalyptic number.

It is an amenable number.

543423101421 is a deficient number, since it is larger than the sum of its proper divisors (182577004179).

543423101421 is a wasteful number, since it uses less digits than its factorization.

543423101421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171188.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 543423101421 its reverse (124101324345), we get a palindrome (667524425766).

The spelling of 543423101421 in words is "five hundred forty-three billion, four hundred twenty-three million, one hundred one thousand, four hundred twenty-one".