43031200543 has 4 divisors (see below), whose sum is σ = 43057748248. Its totient is φ = 43004652840.

The previous prime is 43031200507. The next prime is 43031200559. The reversal of 43031200543 is 34500213034.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43031200543 - 2²¹ = 43029103391 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 (43031240543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13271421 + ... + 13274662.

It is an arithmetic number, because the mean of its divisors is an integer number (10764437062).

Almost surely, 2^43031200543 is an apocalyptic number.

43031200543 is a deficient number, since it is larger than the sum of its proper divisors (26547705).

43031200543 is a wasteful number, since it uses less digits than its factorization.

43031200543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26547704.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 43031200543 its reverse (34500213034), we get a palindrome (77531413577).

The spelling of 43031200543 in words is "forty-three billion, thirty-one million, two hundred thousand, five hundred forty-three".