243045313024 has 80 divisors (see below), whose sum is σ = 498023202600. Its totient is φ = 118424535040.

The previous prime is 243045312889. The next prime is 243045313067. The reversal of 243045313024 is 420313540342.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 208330170624 + 34715142400 = 456432^2 + 186320^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19999302 + ... + 20011450.

Almost surely, 2^243045313024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243045313024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249011601300).

243045313024 is an abundant number, since it is smaller than the sum of its proper divisors (254977889576).

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

243045313024 is an equidigital number, since it uses as much as digits as its factorization.

243045313024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13161 (or 13145 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 243045313024 its reverse (420313540342), we get a palindrome (663358853366).

The spelling of 243045313024 in words is "two hundred forty-three billion, forty-five million, three hundred thirteen thousand, twenty-four".