200120122123 has 4 divisors (see below), whose sum is σ = 200124702160. Its totient is φ = 200115542088.

The previous prime is 200120122109. The next prime is 200120122127. The reversal of 200120122123 is 321221021002.

It is a happy number.

200120122123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200120122123 - 2⁵ = 200120122091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200120122097 and 200120122106.

It is not an unprimeable number, because it can be changed into a prime (200120122127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2223840 + ... + 2312077.

It is an arithmetic number, because the mean of its divisors is an integer number (50031175540).

Almost surely, 2^200120122123 is an apocalyptic number.

200120122123 is a deficient number, since it is larger than the sum of its proper divisors (4580037).

200120122123 is an equidigital number, since it uses as much as digits as its factorization.

200120122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4580036.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 200120122123 its reverse (321221021002), we get a palindrome (521341143125).

The spelling of 200120122123 in words is "two hundred billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twenty-three".