543112311420 has 144 divisors (see below), whose sum is σ = 1883269402560. Its totient is φ = 124108305408.

The previous prime is 543112311419. The next prime is 543112311451. The reversal of 543112311420 is 24113211345.

543112311420 is a `hidden beast` number, since 5 + 4 + 3 + 1 + 1 + 231 + 1 + 420 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5079066 + ... + 5184894.

It is an arithmetic number, because the mean of its divisors is an integer number (13078259740).

Almost surely, 2^543112311420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 543112311420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941634701280).

543112311420 is an abundant number, since it is smaller than the sum of its proper divisors (1340157091140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

543112311420 is a wasteful number, since it uses less digits than its factorization.

543112311420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109924 (or 109919 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 543112311420 its reverse (24113211345), we get a palindrome (567225522765).

The spelling of 543112311420 in words is "five hundred forty-three billion, one hundred twelve million, three hundred eleven thousand, four hundred twenty".