243423230443220 has 96 divisors (see below), whose sum is σ = 517797816834816. Its totient is φ = 96112501760000.

The previous prime is 243423230443213. The next prime is 243423230443231. The reversal of 243423230443220 is 22344032324342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14221130102 + ... + 14221147218.

It is an arithmetic number, because the mean of its divisors is an integer number (5393727258696).

Almost surely, 2^{243423230443220} is an apocalyptic number.

243423230443220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243423230443220 is an abundant number, since it is smaller than the sum of its proper divisors (274374586391596).

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

243423230443220 is a wasteful number, since it uses less digits than its factorization.

243423230443220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24161 (or 24159 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 38.

Adding to 243423230443220 its reverse (22344032324342), we get a palindrome (265767262767562).

The spelling of 243423230443220 in words is "two hundred forty-three trillion, four hundred twenty-three billion, two hundred thirty million, four hundred forty-three thousand, two hundred twenty".