40103088105809 has 2 divisors, whose sum is σ = 40103088105810. Its totient is φ = 40103088105808.

The previous prime is 40103088105653. The next prime is 40103088105823. The reversal of 40103088105809 is 90850188030104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30433923723025 + 9669164382784 = 5516695^2 + 3109528^2 .

It is a cyclic number.

It is not a de Polignac number, because 40103088105809 - 2⁴⁰ = 39003576478033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40103088165809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20051544052904 + 20051544052905.

It is an arithmetic number, because the mean of its divisors is an integer number (20051544052905).

Almost surely, 2^{40103088105809} is an apocalyptic number.

It is an amenable number.

40103088105809 is a deficient number, since it is larger than the sum of its proper divisors (1).

40103088105809 is an equidigital number, since it uses as much as digits as its factorization.

40103088105809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 40103088105809 in words is "forty trillion, one hundred three billion, eighty-eight million, one hundred five thousand, eight hundred nine".