18350599103 has 2 divisors, whose sum is σ = 18350599104. Its totient is φ = 18350599102.

The previous prime is 18350599097. The next prime is 18350599177. The reversal of 18350599103 is 30199505381.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18350599103 - 2⁴ = 18350599087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18350599303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9175299551 + 9175299552.

It is an arithmetic number, because the mean of its divisors is an integer number (9175299552).

Almost surely, 2^18350599103 is an apocalyptic number.

18350599103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18350599103 is an equidigital number, since it uses as much as digits as its factorization.

18350599103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 44.

The spelling of 18350599103 in words is "eighteen billion, three hundred fifty million, five hundred ninety-nine thousand, one hundred three".