1820182909203 has 12 divisors (see below), whose sum is σ = 2630962575280. Its totient is φ = 1212620126256.

The previous prime is 1820182909201. The next prime is 1820182909217. The reversal of 1820182909203 is 3029092810281.

It is a happy number.

1820182909203 is a `hidden beast` number, since 182 + 0 + 182 + 90 + 9 + 203 = 666.

It is not a de Polignac number, because 1820182909203 - 2¹ = 1820182909201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1820182909201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69581743 + ... + 69607896.

Almost surely, 2^{1820182909203} is an apocalyptic number.

1820182909203 is a deficient number, since it is larger than the sum of its proper divisors (810779666077).

1820182909203 is a wasteful number, since it uses less digits than its factorization.

1820182909203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139191098 (or 139191095 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 1820182909203 in words is "one trillion, eight hundred twenty billion, one hundred eighty-two million, nine hundred nine thousand, two hundred three".