212134430443 has 8 divisors (see below), whose sum is σ = 231862202768. Its totient is φ = 192893763744.

The previous prime is 212134430429. The next prime is 212134430483. The reversal of 212134430443 is 344034431212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212134430443 - 2⁹ = 212134429931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212134430483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121775496 + ... + 121777237.

It is an arithmetic number, because the mean of its divisors is an integer number (28982775346).

Almost surely, 2^212134430443 is an apocalyptic number.

212134430443 is a deficient number, since it is larger than the sum of its proper divisors (19727772325).

212134430443 is a wasteful number, since it uses less digits than its factorization.

212134430443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243552813.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 212134430443 its reverse (344034431212), we get a palindrome (556168861655).

The spelling of 212134430443 in words is "two hundred twelve billion, one hundred thirty-four million, four hundred thirty thousand, four hundred forty-three".