200200123 has 2 divisors, whose sum is σ = 200200124. Its totient is φ = 200200122.

The previous prime is 200200097. The next prime is 200200129. The reversal of 200200123 is 321002002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200200123 is a prime.

It is not a weakly prime, because it can be changed into another prime (200200129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100100061 + 100100062.

It is an arithmetic number, because the mean of its divisors is an integer number (100100062).

Almost surely, 2^200200123 is an apocalyptic number.

200200123 is a deficient number, since it is larger than the sum of its proper divisors (1).

200200123 is an equidigital number, since it uses as much as digits as its factorization.

200200123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 200200123 is about 14149.2092711925. The cubic root of 200200123 is about 584.9985370212.

Adding to 200200123 its reverse (321002002), we get a palindrome (521202125).

The spelling of 200200123 in words is "two hundred million, two hundred thousand, one hundred twenty-three".