212031113312 has 24 divisors (see below), whose sum is σ = 417514083336. Its totient is φ = 105995790592.

The previous prime is 212031113267. The next prime is 212031113353. The reversal of 212031113312 is 213311130212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442613 + ... + 787380.

It is an arithmetic number, because the mean of its divisors is an integer number (17396420139).

Almost surely, 2^212031113312 is an apocalyptic number.

It is an amenable number.

212031113312 is a deficient number, since it is larger than the sum of its proper divisors (205482970024).

212031113312 is a wasteful number, since it uses less digits than its factorization.

212031113312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235390 (or 1235382 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 212031113312 its reverse (213311130212), we get a palindrome (425342243524).

The spelling of 212031113312 in words is "two hundred twelve billion, thirty-one million, one hundred thirteen thousand, three hundred twelve".