200312231112 has 48 divisors (see below), whose sum is σ = 620014050240. Its totient is φ = 57232065888.

The previous prime is 200312231111. The next prime is 200312231153. The reversal of 200312231112 is 211132213002.

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

It is not an unprimeable number, because it can be changed into a prime (200312231111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198721948 + ... + 198722955.

It is an arithmetic number, because the mean of its divisors is an integer number (12916959380).

Almost surely, 2^200312231112 is an apocalyptic number.

It is an amenable number.

200312231112 is an abundant number, since it is smaller than the sum of its proper divisors (419701819128).

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

200312231112 is a wasteful number, since it uses less digits than its factorization.

200312231112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397444922 (or 397444915 counting only the distinct ones).

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

Adding to 200312231112 its reverse (211132213002), we get a palindrome (411444444114).

The spelling of 200312231112 in words is "two hundred billion, three hundred twelve million, two hundred thirty-one thousand, one hundred twelve".