243244342411020 has 576 divisors, whose sum is σ = 800094006706176. Its totient is φ = 59584052183040.

The previous prime is 243244342410977. The next prime is 243244342411027. The reversal of 243244342411020 is 20114243442342.

243244342411020 is a `hidden beast` number, since 2 + 4 + 3 + 244 + 342 + 41 + 10 + 20 = 666.

It is a super-2 number, since 2×243244342411020² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (243244342411027) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 105896534512 + ... + 105896536808.

It is an arithmetic number, because the mean of its divisors is an integer number (1389052094976).

Almost surely, 2^{243244342411020} is an apocalyptic number.

243244342411020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243244342411020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400047003353088).

243244342411020 is an abundant number, since it is smaller than the sum of its proper divisors (556849664295156).

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

243244342411020 is a wasteful number, since it uses less digits than its factorization.

243244342411020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110 (or 4105 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 243244342411020 its reverse (20114243442342), we get a palindrome (263358585853362).

The spelling of 243244342411020 in words is "two hundred forty-three trillion, two hundred forty-four billion, three hundred forty-two million, four hundred eleven thousand, twenty".