18302103 has 12 divisors (see below), whose sum is σ = 27348360. Its totient is φ = 11780496.

The previous prime is 18302101. The next prime is 18302107. The reversal of 18302103 is 30120381.

It is not a de Polignac number, because 18302103 - 2¹ = 18302101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18302101) 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, 34801 + ... + 35322.

It is an arithmetic number, because the mean of its divisors is an integer number (2279030).

Almost surely, 2^18302103 is an apocalyptic number.

18302103 is a deficient number, since it is larger than the sum of its proper divisors (9046257).

18302103 is a wasteful number, since it uses less digits than its factorization.

18302103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70158 (or 70155 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 18302103 is about 4278.0957212292. The cubic root of 18302103 is about 263.5321863209.

Adding to 18302103 its reverse (30120381), we get a palindrome (48422484).

The spelling of 18302103 in words is "eighteen million, three hundred two thousand, one hundred three".