212423323012 has 6 divisors (see below), whose sum is σ = 371740815278. Its totient is φ = 106211661504.

The previous prime is 212423322961. The next prime is 212423323039. The reversal of 212423323012 is 210323324212.

212423323012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 157120275456 + 55303047556 = 396384^2 + 235166^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26552915373 + ... + 26552915380.

Almost surely, 2^212423323012 is an apocalyptic number.

It is an amenable number.

212423323012 is a deficient number, since it is larger than the sum of its proper divisors (159317492266).

212423323012 is a wasteful number, since it uses less digits than its factorization.

212423323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53105830757 (or 53105830755 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 212423323012 its reverse (210323324212), we get a palindrome (422746647224).

The spelling of 212423323012 in words is "two hundred twelve billion, four hundred twenty-three million, three hundred twenty-three thousand, twelve".