18192819103 has 4 divisors (see below), whose sum is σ = 18194750280. Its totient is φ = 18190887928.

The previous prime is 18192819097. The next prime is 18192819107. The reversal of 18192819103 is 30191829181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30191829181 = 2377 ⋅12701653.

It is a cyclic number.

It is not a de Polignac number, because 18192819103 - 2²¹ = 18190721951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18192819103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18192819107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 951388 + ... + 970321.

It is an arithmetic number, because the mean of its divisors is an integer number (4548687570).

Almost surely, 2^18192819103 is an apocalyptic number.

18192819103 is a deficient number, since it is larger than the sum of its proper divisors (1931177).

18192819103 is an equidigital number, since it uses as much as digits as its factorization.

18192819103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931176.

The product of its (nonzero) digits is 31104, while the sum is 43.

The spelling of 18192819103 in words is "eighteen billion, one hundred ninety-two million, eight hundred nineteen thousand, one hundred three".