243133040420 has 96 divisors (see below), whose sum is σ = 525487979520. Its totient is φ = 94460929920.

The previous prime is 243133040419. The next prime is 243133040459. The reversal of 243133040420 is 24040331342.

243133040420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243133040420² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243133040420.

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, 44666219 + ... + 44671661.

It is an arithmetic number, because the mean of its divisors is an integer number (5473833120).

Almost surely, 2^243133040420 is an apocalyptic number.

243133040420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243133040420 is an abundant number, since it is smaller than the sum of its proper divisors (282354939100).

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

243133040420 is a wasteful number, since it uses less digits than its factorization.

243133040420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5985 (or 5983 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 243133040420 its reverse (24040331342), we get a palindrome (267173371762).

The spelling of 243133040420 in words is "two hundred forty-three billion, one hundred thirty-three million, forty thousand, four hundred twenty".