43582000243 has 2 divisors, whose sum is σ = 43582000244. Its totient is φ = 43582000242.

The previous prime is 43582000199. The next prime is 43582000279. The reversal of 43582000243 is 34200028534.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43582000243 is a prime.

It is not a weakly prime, because it can be changed into another prime (43582000043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21791000121 + 21791000122.

It is an arithmetic number, because the mean of its divisors is an integer number (21791000122).

Almost surely, 2^43582000243 is an apocalyptic number.

43582000243 is a deficient number, since it is larger than the sum of its proper divisors (1).

43582000243 is an equidigital number, since it uses as much as digits as its factorization.

43582000243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 43582000243 its reverse (34200028534), we get a palindrome (77782028777).

The spelling of 43582000243 in words is "forty-three billion, five hundred eighty-two million, two hundred forty-three", and thus it is an aban number.