543421281121 has 16 divisors (see below), whose sum is σ = 607386686400. Its totient is φ = 483163895808.

The previous prime is 543421281119. The next prime is 543421281163. The reversal of 543421281121 is 121182124345.

It is a cyclic number.

It is not a de Polignac number, because 543421281121 - 2¹ = 543421281119 is a prime.

It is a super-2 number, since 2×543421281121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543421281421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2269011 + ... + 2497048.

It is an arithmetic number, because the mean of its divisors is an integer number (37961667900).

Almost surely, 2^543421281121 is an apocalyptic number.

It is an amenable number.

543421281121 is a deficient number, since it is larger than the sum of its proper divisors (63965405279).

543421281121 is a wasteful number, since it uses less digits than its factorization.

543421281121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4766448.

The product of its digits is 15360, while the sum is 34.

The spelling of 543421281121 in words is "five hundred forty-three billion, four hundred twenty-one million, two hundred eighty-one thousand, one hundred twenty-one".