43036534134109 has 2 divisors, whose sum is σ = 43036534134110. Its totient is φ = 43036534134108.

The previous prime is 43036534134049. The next prime is 43036534134131. The reversal of 43036534134109 is 90143143563034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35568365622084 + 7468168512025 = 5963922^2 + 2732795^2 .

It is a cyclic number.

It is not a de Polignac number, because 43036534134109 - 2⁹ = 43036534133597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43036534134199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21518267067054 + 21518267067055.

It is an arithmetic number, because the mean of its divisors is an integer number (21518267067055).

Almost surely, 2^{43036534134109} is an apocalyptic number.

It is an amenable number.

43036534134109 is a deficient number, since it is larger than the sum of its proper divisors (1).

43036534134109 is an equidigital number, since it uses as much as digits as its factorization.

43036534134109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 46.

The spelling of 43036534134109 in words is "forty-three trillion, thirty-six billion, five hundred thirty-four million, one hundred thirty-four thousand, one hundred nine".