43021534043 has 4 divisors (see below), whose sum is σ = 43022136528. Its totient is φ = 43020931560.

The previous prime is 43021534009. The next prime is 43021534081. The reversal of 43021534043 is 34043512034.

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 43021534043 - 2¹⁶ = 43021468507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43021533997 and 43021534015.

It is not an unprimeable number, because it can be changed into a prime (43021534093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177071 + ... + 342632.

It is an arithmetic number, because the mean of its divisors is an integer number (10755534132).

Almost surely, 2^43021534043 is an apocalyptic number.

43021534043 is a deficient number, since it is larger than the sum of its proper divisors (602485).

43021534043 is an equidigital number, since it uses as much as digits as its factorization.

43021534043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602484.

The product of its (nonzero) digits is 17280, while the sum is 29.

The spelling of 43021534043 in words is "forty-three billion, twenty-one million, five hundred thirty-four thousand, forty-three".