218028203 has 2 divisors, whose sum is σ = 218028204. Its totient is φ = 218028202.

The previous prime is 218028197. The next prime is 218028241. The reversal of 218028203 is 302820812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 218028203 - 2⁸ = 218027947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (218028403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109014101 + 109014102.

It is an arithmetic number, because the mean of its divisors is an integer number (109014102).

Almost surely, 2^218028203 is an apocalyptic number.

218028203 is a deficient number, since it is larger than the sum of its proper divisors (1).

218028203 is an equidigital number, since it uses as much as digits as its factorization.

218028203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 218028203 is about 14765.7781034390. The cubic root of 218028203 is about 601.8721182872.

The spelling of 218028203 in words is "two hundred eighteen million, twenty-eight thousand, two hundred three".