200120112123 has 8 divisors (see below), whose sum is σ = 274038351888. Its totient is φ = 129807640224.

The previous prime is 200120112091. The next prime is 200120112161. The reversal of 200120112123 is 321211021002.

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

It is not a de Polignac number, because 200120112123 - 2⁵ = 200120112091 is a prime.

It is a super-2 number, since 2×200120112123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (200120112223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901441836 + ... + 901442057.

It is an arithmetic number, because the mean of its divisors is an integer number (34254793986).

Almost surely, 2^200120112123 is an apocalyptic number.

200120112123 is a deficient number, since it is larger than the sum of its proper divisors (73918239765).

200120112123 is a wasteful number, since it uses less digits than its factorization.

200120112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802883933.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 200120112123 its reverse (321211021002), we get a palindrome (521331133125).

The spelling of 200120112123 in words is "two hundred billion, one hundred twenty million, one hundred twelve thousand, one hundred twenty-three".