1808182509103 has 2 divisors, whose sum is σ = 1808182509104. Its totient is φ = 1808182509102.

The previous prime is 1808182509071. The next prime is 1808182509137. The reversal of 1808182509103 is 3019052818081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1808182509103 - 2⁵ = 1808182509071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1808182509143) 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, 904091254551 + 904091254552.

It is an arithmetic number, because the mean of its divisors is an integer number (904091254552).

Almost surely, 2^{1808182509103} is an apocalyptic number.

1808182509103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1808182509103 is an equidigital number, since it uses as much as digits as its factorization.

1808182509103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 46.

The spelling of 1808182509103 in words is "one trillion, eight hundred eight billion, one hundred eighty-two million, five hundred nine thousand, one hundred three".