243120300304 has 80 divisors (see below), whose sum is σ = 547759405440. Its totient is φ = 102372802560.

The previous prime is 243120300233. The next prime is 243120300317. The reversal of 243120300304 is 403003021342.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13557264 + ... + 13575184.

It is an arithmetic number, because the mean of its divisors is an integer number (6846992568).

Almost surely, 2^243120300304 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 243120300304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273879702720).

243120300304 is an abundant number, since it is smaller than the sum of its proper divisors (304639105136).

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

243120300304 is a wasteful number, since it uses less digits than its factorization.

243120300304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20048 (or 20042 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 243120300304 its reverse (403003021342), we get a palindrome (646123321646).

The spelling of 243120300304 in words is "two hundred forty-three billion, one hundred twenty million, three hundred thousand, three hundred four".