43543133134531 has 2 divisors, whose sum is σ = 43543133134532. Its totient is φ = 43543133134530.

The previous prime is 43543133134499. The next prime is 43543133134573. The reversal of 43543133134531 is 13543133134534.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43543133134531 - 2⁵ = 43543133134499 is a prime.

It is a super-2 number, since 2×43543133134531² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43543130134531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21771566567265 + 21771566567266.

It is an arithmetic number, because the mean of its divisors is an integer number (21771566567266).

Almost surely, 2^{43543133134531} is an apocalyptic number.

43543133134531 is a deficient number, since it is larger than the sum of its proper divisors (1).

43543133134531 is an equidigital number, since it uses as much as digits as its factorization.

43543133134531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 43.

The spelling of 43543133134531 in words is "forty-three trillion, five hundred forty-three billion, one hundred thirty-three million, one hundred thirty-four thousand, five hundred thirty-one".