200123361 has 6 divisors (see below), whose sum is σ = 289067090. Its totient is φ = 133415568.

The previous prime is 200123317. The next prime is 200123377. The reversal of 200123361 is 163321002.

It can be written as a sum of positive squares in only one way, i.e., 194435136 + 5688225 = 13944^2 + 2385^2 .

It is not a de Polignac number, because 200123361 - 2⁷ = 200123233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200123311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11117956 + ... + 11117973.

Almost surely, 2^200123361 is an apocalyptic number.

It is an amenable number.

200123361 is a deficient number, since it is larger than the sum of its proper divisors (88943729).

200123361 is a wasteful number, since it uses less digits than its factorization.

200123361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22235935 (or 22235932 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 200123361 is about 14146.4964213759. The cubic root of 200123361 is about 584.9237595143.

Adding to 200123361 its reverse (163321002), we get a palindrome (363444363).

The spelling of 200123361 in words is "two hundred million, one hundred twenty-three thousand, three hundred sixty-one".