198023003 has 2 divisors, whose sum is σ = 198023004. Its totient is φ = 198023002.

The previous prime is 198022963. The next prime is 198023027. The reversal of 198023003 is 300320891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198023003 - 2¹⁰ = 198021979 is a prime.

It is not a weakly prime, because it can be changed into another prime (198023053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99011501 + 99011502.

It is an arithmetic number, because the mean of its divisors is an integer number (99011502).

Almost surely, 2^198023003 is an apocalyptic number.

198023003 is a deficient number, since it is larger than the sum of its proper divisors (1).

198023003 is an equidigital number, since it uses as much as digits as its factorization.

198023003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 198023003 is about 14072.0646317447. The cubic root of 198023003 is about 582.8702385705.

Adding to 198023003 its reverse (300320891), we get a palindrome (498343894).

The spelling of 198023003 in words is "one hundred ninety-eight million, twenty-three thousand, three".