243312342420 has 48 divisors (see below), whose sum is σ = 778599497088. Its totient is φ = 55614249600.

The previous prime is 243312342407. The next prime is 243312342439. The reversal of 243312342420 is 24243213342.

243312342420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289657131 + ... + 289657970.

It is an arithmetic number, because the mean of its divisors is an integer number (16220822856).

Almost surely, 2^243312342420 is an apocalyptic number.

243312342420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243312342420 is an abundant number, since it is smaller than the sum of its proper divisors (535287154668).

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

243312342420 is a wasteful number, since it uses less digits than its factorization.

243312342420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579315120 (or 579315118 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 243312342420 its reverse (24243213342), we get a palindrome (267555555762).

The spelling of 243312342420 in words is "two hundred forty-three billion, three hundred twelve million, three hundred forty-two thousand, four hundred twenty".