200123112 has 32 divisors (see below), whose sum is σ = 571780800. Its totient is φ = 57177984.

The previous prime is 200123111. The next prime is 200123191. The reversal of 200123112 is 211321002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (200123111) 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, 595437 + ... + 595772.

It is an arithmetic number, because the mean of its divisors is an integer number (17868150).

Almost surely, 2^200123112 is an apocalyptic number.

It is an amenable number.

200123112 is an abundant number, since it is smaller than the sum of its proper divisors (371657688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200123112 is a wasteful number, since it uses less digits than its factorization.

200123112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191225 (or 1191221 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 200123112 is about 14146.4876206075. The cubic root of 200123112 is about 584.9235169204.

Adding to 200123112 its reverse (211321002), we get a palindrome (411444114).

The spelling of 200123112 in words is "two hundred million, one hundred twenty-three thousand, one hundred twelve".