18245168103 has 4 divisors (see below), whose sum is σ = 24326890808. Its totient is φ = 12163445400.

The previous prime is 18245168089. The next prime is 18245168131. The reversal of 18245168103 is 30186154281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30186154281 = 3 ⋅10062051427.

It is not a de Polignac number, because 18245168103 - 2¹⁰ = 18245167079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18245168153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3040861348 + ... + 3040861353.

It is an arithmetic number, because the mean of its divisors is an integer number (6081722702).

Almost surely, 2^18245168103 is an apocalyptic number.

18245168103 is a deficient number, since it is larger than the sum of its proper divisors (6081722705).

18245168103 is an equidigital number, since it uses as much as digits as its factorization.

18245168103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6081722704.

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 18245168103 in words is "eighteen billion, two hundred forty-five million, one hundred sixty-eight thousand, one hundred three".