18036103 has 2 divisors, whose sum is σ = 18036104. Its totient is φ = 18036102.

The previous prime is 18036101. The next prime is 18036119. The reversal of 18036103 is 30163081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18036103 - 2¹ = 18036101 is a prime.

It is a super-2 number, since 2×18036103² = 650602022853218, which contains 22 as substring.

Together with 18036101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18036101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9018051 + 9018052.

It is an arithmetic number, because the mean of its divisors is an integer number (9018052).

Almost surely, 2^18036103 is an apocalyptic number.

18036103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18036103 is an equidigital number, since it uses as much as digits as its factorization.

18036103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 18036103 is about 4246.8933351333. The cubic root of 18036103 is about 262.2492383815.

Adding to 18036103 its reverse (30163081), we get a palindrome (48199184).

The spelling of 18036103 in words is "eighteen million, thirty-six thousand, one hundred three".