200103123 has 32 divisors (see below), whose sum is σ = 301593600. Its totient is φ = 116958240.

The previous prime is 200103121. The next prime is 200103133. The reversal of 200103123 is 321301002.

It is a happy number.

It is not a de Polignac number, because 200103123 - 2¹ = 200103121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200103099 and 200103108.

It is not an unprimeable number, because it can be changed into a prime (200103121) 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 31 ways as a sum of consecutive naturals, for example, 116928 + ... + 118626.

It is an arithmetic number, because the mean of its divisors is an integer number (9424800).

Almost surely, 2^200103123 is an apocalyptic number.

200103123 is a deficient number, since it is larger than the sum of its proper divisors (101490477).

200103123 is a wasteful number, since it uses less digits than its factorization.

200103123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 200103123 is about 14145.7811025054. The cubic root of 200103123 is about 584.9040415329.

Adding to 200103123 its reverse (321301002), we get a palindrome (521404125).

The spelling of 200103123 in words is "two hundred million, one hundred three thousand, one hundred twenty-three".