218317103 has 2 divisors, whose sum is σ = 218317104. Its totient is φ = 218317102.

The previous prime is 218317093. The next prime is 218317181. The reversal of 218317103 is 301713812.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218317103 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218317193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109158551 + 109158552.

It is an arithmetic number, because the mean of its divisors is an integer number (109158552).

Almost surely, 2^218317103 is an apocalyptic number.

218317103 is a deficient number, since it is larger than the sum of its proper divisors (1).

218317103 is an equidigital number, since it uses as much as digits as its factorization.

218317103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 218317103 is about 14775.5576206111. The cubic root of 218317103 is about 602.1378394314.

The spelling of 218317103 in words is "two hundred eighteen million, three hundred seventeen thousand, one hundred three".