200030123 has 4 divisors (see below), whose sum is σ = 200058528. Its totient is φ = 200001720.

The previous prime is 200030113. The next prime is 200030141. The reversal of 200030123 is 321030002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 200030123 - 2⁴ = 200030107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200030113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5165 + ... + 20657.

It is an arithmetic number, because the mean of its divisors is an integer number (50014632).

Almost surely, 2^200030123 is an apocalyptic number.

200030123 is a deficient number, since it is larger than the sum of its proper divisors (28405).

200030123 is a wasteful number, since it uses less digits than its factorization.

200030123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28404.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 200030123 is about 14143.2005925109. The cubic root of 200030123 is about 584.8329062308.

Adding to 200030123 its reverse (321030002), we get a palindrome (521060125).

It can be divided in two parts, 2000 and 30123, that added together give a palindrome (32123).

The spelling of 200030123 in words is "two hundred million, thirty thousand, one hundred twenty-three".