43124033209 has 2 divisors, whose sum is σ = 43124033210. Its totient is φ = 43124033208.

The previous prime is 43124033201. The next prime is 43124033219. The reversal of 43124033209 is 90233042134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37741609984 + 5382423225 = 194272^2 + 73365^2 .

It is a cyclic number.

It is not a de Polignac number, because 43124033209 - 2³ = 43124033201 is a prime.

It is not a weakly prime, because it can be changed into another prime (43124033201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21562016604 + 21562016605.

It is an arithmetic number, because the mean of its divisors is an integer number (21562016605).

Almost surely, 2^43124033209 is an apocalyptic number.

It is an amenable number.

43124033209 is a deficient number, since it is larger than the sum of its proper divisors (1).

43124033209 is an equidigital number, since it uses as much as digits as its factorization.

43124033209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 43124033209 in words is "forty-three billion, one hundred twenty-four million, thirty-three thousand, two hundred nine".