212423544430 has 8 divisors (see below), whose sum is σ = 382362379992. Its totient is φ = 84969417768.

The previous prime is 212423544409. The next prime is 212423544433. The reversal of 212423544430 is 34445324212.

212423544430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212423544433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10621177212 + ... + 10621177231.

It is an arithmetic number, because the mean of its divisors is an integer number (47795297499).

Almost surely, 2^212423544430 is an apocalyptic number.

212423544430 is a deficient number, since it is larger than the sum of its proper divisors (169938835562).

212423544430 is a wasteful number, since it uses less digits than its factorization.

212423544430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21242354450.

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 212423544430 its reverse (34445324212), we get a palindrome (246868868642).

The spelling of 212423544430 in words is "two hundred twelve billion, four hundred twenty-three million, five hundred forty-four thousand, four hundred thirty".