1043241423509 has 2 divisors, whose sum is σ = 1043241423510. Its totient is φ = 1043241423508.

The previous prime is 1043241423487. The next prime is 1043241423533. The reversal of 1043241423509 is 9053241423401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1000590087025 + 42651336484 = 1000295^2 + 206522^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043241423509 - 2¹⁶ = 1043241357973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043241423569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521620711754 + 521620711755.

It is an arithmetic number, because the mean of its divisors is an integer number (521620711755).

Almost surely, 2^{1043241423509} is an apocalyptic number.

It is an amenable number.

1043241423509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043241423509 is an equidigital number, since it uses as much as digits as its factorization.

1043241423509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 1043241423509 in words is "one trillion, forty-three billion, two hundred forty-one million, four hundred twenty-three thousand, five hundred nine".