18434416103 has 2 divisors, whose sum is σ = 18434416104. Its totient is φ = 18434416102.

The previous prime is 18434416019. The next prime is 18434416153. The reversal of 18434416103 is 30161443481.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18434416103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18434416153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9217208051 + 9217208052.

It is an arithmetic number, because the mean of its divisors is an integer number (9217208052).

Almost surely, 2^18434416103 is an apocalyptic number.

18434416103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18434416103 is an equidigital number, since it uses as much as digits as its factorization.

18434416103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

Adding to 18434416103 its reverse (30161443481), we get a palindrome (48595859584).

The spelling of 18434416103 in words is "eighteen billion, four hundred thirty-four million, four hundred sixteen thousand, one hundred three".