43232109997 has 2 divisors, whose sum is σ = 43232109998. Its totient is φ = 43232109996.

The previous prime is 43232109989. The next prime is 43232110013. The reversal of 43232109997 is 79990123234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30729739401 + 12502370596 = 175299^2 + 111814^2 .

It is a cyclic number.

It is not a de Polignac number, because 43232109997 - 2³ = 43232109989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43232109997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43232109967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21616054998 + 21616054999.

It is an arithmetic number, because the mean of its divisors is an integer number (21616054999).

Almost surely, 2^43232109997 is an apocalyptic number.

It is an amenable number.

43232109997 is a deficient number, since it is larger than the sum of its proper divisors (1).

43232109997 is an equidigital number, since it uses as much as digits as its factorization.

43232109997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 49.

The spelling of 43232109997 in words is "forty-three billion, two hundred thirty-two million, one hundred nine thousand, nine hundred ninety-seven".