243423230443212 has 48 divisors (see below), whose sum is σ = 573396300781920. Its totient is φ = 80368910318592.

The previous prime is 243423230443139. The next prime is 243423230443213. The reversal of 243423230443212 is 212344032324342.

It is not an unprimeable number, because it can be changed into a prime (243423230443213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28330743 + ... + 35909294.

It is an arithmetic number, because the mean of its divisors is an integer number (11945756266290).

Almost surely, 2^{243423230443212} is an apocalyptic number.

It is an amenable number.

243423230443212 is an abundant number, since it is smaller than the sum of its proper divisors (329973070338708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243423230443212 is a wasteful number, since it uses less digits than its factorization.

243423230443212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64243050 (or 64243048 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 39.

Adding to 243423230443212 its reverse (212344032324342), we get a palindrome (455767262767554).

The spelling of 243423230443212 in words is "two hundred forty-three trillion, four hundred twenty-three billion, two hundred thirty million, four hundred forty-three thousand, two hundred twelve".