18043137103 has 2 divisors, whose sum is σ = 18043137104. Its totient is φ = 18043137102.

The previous prime is 18043137059. The next prime is 18043137107. The reversal of 18043137103 is 30173134081.

It is a strong prime.

It is an emirp because it is prime and its reverse (30173134081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18043137103 - 2⁹ = 18043136591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18043137107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9021568551 + 9021568552.

It is an arithmetic number, because the mean of its divisors is an integer number (9021568552).

Almost surely, 2^18043137103 is an apocalyptic number.

18043137103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18043137103 is an equidigital number, since it uses as much as digits as its factorization.

18043137103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 18043137103 in words is "eighteen billion, forty-three million, one hundred thirty-seven thousand, one hundred three".