198021203 has 2 divisors, whose sum is σ = 198021204. Its totient is φ = 198021202.

The previous prime is 198021157. The next prime is 198021209. The reversal of 198021203 is 302120891.

198021203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198021203 - 2¹⁴ = 198004819 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198021209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99010601 + 99010602.

It is an arithmetic number, because the mean of its divisors is an integer number (99010602).

Almost surely, 2^198021203 is an apocalyptic number.

198021203 is a deficient number, since it is larger than the sum of its proper divisors (1).

198021203 is an equidigital number, since it uses as much as digits as its factorization.

198021203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 198021203 is about 14072.0006750995. Note that the first 3 decimals coincide. The cubic root of 198021203 is about 582.8684724969.

The spelling of 198021203 in words is "one hundred ninety-eight million, twenty-one thousand, two hundred three".