18300709103 has 4 divisors (see below), whose sum is σ = 18301111248. Its totient is φ = 18300306960.

The previous prime is 18300709087. The next prime is 18300709109. The reversal of 18300709103 is 30190700381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30190700381 = 23 ⋅1312639147.

It is a cyclic number.

It is not a de Polignac number, because 18300709103 - 2⁴ = 18300709087 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 18300709103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18300709109) 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, 122603 + ... + 227228.

It is an arithmetic number, because the mean of its divisors is an integer number (4575277812).

Almost surely, 2^18300709103 is an apocalyptic number.

18300709103 is a deficient number, since it is larger than the sum of its proper divisors (402145).

18300709103 is an equidigital number, since it uses as much as digits as its factorization.

18300709103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402144.

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 18300709103 in words is "eighteen billion, three hundred million, seven hundred nine thousand, one hundred three".