200123031012 has 12 divisors (see below), whose sum is σ = 466953739056. Its totient is φ = 66707677000.

The previous prime is 200123030873. The next prime is 200123031019. The reversal of 200123031012 is 210130321002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 200123030982 and 200123031000.

It is not an unprimeable number, because it can be changed into a prime (200123031019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8338459614 + ... + 8338459637.

It is an arithmetic number, because the mean of its divisors is an integer number (38912811588).

Almost surely, 2^200123031012 is an apocalyptic number.

It is an amenable number.

200123031012 is an abundant number, since it is smaller than the sum of its proper divisors (266830708044).

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

200123031012 is a wasteful number, since it uses less digits than its factorization.

200123031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16676919258 (or 16676919256 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 200123031012 its reverse (210130321002), we get a palindrome (410253352014).

The spelling of 200123031012 in words is "two hundred billion, one hundred twenty-three million, thirty-one thousand, twelve".