212134431304 has 32 divisors (see below), whose sum is σ = 406203708600. Its totient is φ = 103837043200.

The previous prime is 212134431293. The next prime is 212134431317. The reversal of 212134431304 is 403134431212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 185156368804 + 26978062500 = 430298^2 + 164250^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1403047 + ... + 1546870.

Almost surely, 2^212134431304 is an apocalyptic number.

It is an amenable number.

212134431304 is a deficient number, since it is larger than the sum of its proper divisors (194069277296).

212134431304 is a wasteful number, since it uses less digits than its factorization.

212134431304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950113 (or 2950109 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 212134431304 its reverse (403134431212), we get a palindrome (615268862516).

The spelling of 212134431304 in words is "two hundred twelve billion, one hundred thirty-four million, four hundred thirty-one thousand, three hundred four".