123200143 has 12 divisors (see below), whose sum is σ = 137980584. Its totient is φ = 109881200.

The previous prime is 123200131. The next prime is 123200179. The reversal of 123200143 is 341002321.

It is a happy number.

It is not a de Polignac number, because 123200143 - 2¹³ = 123191951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123206143) 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 11 ways as a sum of consecutive naturals, for example, 3193 + ... + 16018.

It is an arithmetic number, because the mean of its divisors is an integer number (11498382).

Almost surely, 2^123200143 is an apocalyptic number.

123200143 is a deficient number, since it is larger than the sum of its proper divisors (14780441).

123200143 is a wasteful number, since it uses less digits than its factorization.

123200143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19286 (or 19275 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 123200143 is about 11099.5559821103. Note that the first 3 decimals coincide. The cubic root of 123200143 is about 497.5885794651.

Adding to 123200143 its reverse (341002321), we get a palindrome (464202464).

The spelling of 123200143 in words is "one hundred twenty-three million, two hundred thousand, one hundred forty-three".