200031031212 has 12 divisors (see below), whose sum is σ = 466739072856. Its totient is φ = 66677010400.

The previous prime is 200031031183. The next prime is 200031031223. The reversal of 200031031212 is 212130130002.

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

It is a super-2 number, since 2×200031031212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200031031191 and 200031031200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8334626289 + ... + 8334626312.

It is an arithmetic number, because the mean of its divisors is an integer number (38894922738).

Almost surely, 2^200031031212 is an apocalyptic number.

It is an amenable number.

200031031212 is an abundant number, since it is smaller than the sum of its proper divisors (266708041644).

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

200031031212 is a wasteful number, since it uses less digits than its factorization.

200031031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16669252608 (or 16669252606 counting only the distinct ones).

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

Adding to 200031031212 its reverse (212130130002), we get a palindrome (412161161214).

The spelling of 200031031212 in words is "two hundred billion, thirty-one million, thirty-one thousand, two hundred twelve".