200123321112 has 128 divisors (see below), whose sum is σ = 653083200000. Its totient is φ = 55978542720.

The previous prime is 200123321081. The next prime is 200123321113. The reversal of 200123321112 is 211123321002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200123321113) 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, 3208612 + ... + 3270387.

It is an arithmetic number, because the mean of its divisors is an integer number (5102212500).

Almost surely, 2^200123321112 is an apocalyptic number.

200123321112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

200123321112 is an abundant number, since it is smaller than the sum of its proper divisors (452959878888).

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

200123321112 is a wasteful number, since it uses less digits than its factorization.

200123321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479038 (or 6479028 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 200123321112 its reverse (211123321002), we get a palindrome (411246642114).

The spelling of 200123321112 in words is "two hundred billion, one hundred twenty-three million, three hundred twenty-one thousand, one hundred twelve".