209198050003 has 2 divisors, whose sum is σ = 209198050004. Its totient is φ = 209198050002.

The previous prime is 209198049967. The next prime is 209198050021. The reversal of 209198050003 is 300050891902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 209198050003 - 2³⁷ = 71759096531 is a prime.

It is not a weakly prime, because it can be changed into another prime (209198050043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104599025001 + 104599025002.

It is an arithmetic number, because the mean of its divisors is an integer number (104599025002).

Almost surely, 2^209198050003 is an apocalyptic number.

209198050003 is a deficient number, since it is larger than the sum of its proper divisors (1).

209198050003 is an equidigital number, since it uses as much as digits as its factorization.

209198050003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 209198050003 in words is "two hundred nine billion, one hundred ninety-eight million, fifty thousand, three".