18142302103 has 2 divisors, whose sum is σ = 18142302104. Its totient is φ = 18142302102.

The previous prime is 18142302083. The next prime is 18142302107. The reversal of 18142302103 is 30120324181.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18142302103 - 2⁵ = 18142302071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18142302107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9071151051 + 9071151052.

It is an arithmetic number, because the mean of its divisors is an integer number (9071151052).

Almost surely, 2^18142302103 is an apocalyptic number.

18142302103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18142302103 is an equidigital number, since it uses as much as digits as its factorization.

18142302103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 18142302103 its reverse (30120324181), we get a palindrome (48262626284).

The spelling of 18142302103 in words is "eighteen billion, one hundred forty-two million, three hundred two thousand, one hundred three".