200123103312 has 240 divisors, whose sum is σ = 618334674048. Its totient is φ = 59918085120.

The previous prime is 200123103307. The next prime is 200123103319. The reversal of 200123103312 is 213301321002.

200123103312 is a `hidden beast` number, since 20 + 0 + 1 + 2 + 310 + 331 + 2 = 666.

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 (200123103319) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45761158 + ... + 45765530.

Almost surely, 2^200123103312 is an apocalyptic number.

200123103312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200123103312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309167337024).

200123103312 is an abundant number, since it is smaller than the sum of its proper divisors (418211570736).

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

200123103312 is a wasteful number, since it uses less digits than its factorization.

200123103312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738 (or 4729 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 200123103312 its reverse (213301321002), we get a palindrome (413424424314).

The spelling of 200123103312 in words is "two hundred billion, one hundred twenty-three million, one hundred three thousand, three hundred twelve".