200123043 has 16 divisors (see below), whose sum is σ = 270781056. Its totient is φ = 131449280.

The previous prime is 200122999. The next prime is 200123057. The reversal of 200123043 is 340321002.

It is a cyclic number.

It is not a de Polignac number, because 200123043 - 2⁸ = 200122787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200123083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115423 + ... + 117143.

It is an arithmetic number, because the mean of its divisors is an integer number (16923816).

Almost surely, 2^200123043 is an apocalyptic number.

200123043 is a deficient number, since it is larger than the sum of its proper divisors (70658013).

200123043 is a wasteful number, since it uses less digits than its factorization.

200123043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 200123043 is about 14146.4851818393. The cubic root of 200123043 is about 584.9234496956.

Adding to 200123043 its reverse (340321002), we get a palindrome (540444045).

The spelling of 200123043 in words is "two hundred million, one hundred twenty-three thousand, forty-three".