200143123 has 8 divisors (see below), whose sum is σ = 208123200. Its totient is φ = 192235008.

The previous prime is 200143121. The next prime is 200143157. The reversal of 200143123 is 321341002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200143123 - 2¹ = 200143121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200143097 and 200143106.

It is not an unprimeable number, because it can be changed into a prime (200143121) 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 7 ways as a sum of consecutive naturals, for example, 12283 + ... + 23476.

It is an arithmetic number, because the mean of its divisors is an integer number (26015400).

Almost surely, 2^200143123 is an apocalyptic number.

200143123 is a deficient number, since it is larger than the sum of its proper divisors (7980077).

200143123 is a wasteful number, since it uses less digits than its factorization.

200143123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35981.

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

The square root of 200143123 is about 14147.1948809649. The cubic root of 200143123 is about 584.9430124437.

Adding to 200143123 its reverse (321341002), we get a palindrome (521484125).

The spelling of 200143123 in words is "two hundred million, one hundred forty-three thousand, one hundred twenty-three".