243243531300 has 216 divisors, whose sum is σ = 893115024480. Its totient is φ = 50544076800.

The previous prime is 243243531277. The next prime is 243243531313. The reversal of 243243531300 is 3135342342.

243243531300 is digitally balanced in base 3, 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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 590445 + ... + 913844.

It is an arithmetic number, because the mean of its divisors is an integer number (4134791780).

Almost surely, 2^243243531300 is an apocalyptic number.

243243531300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243243531300 is an abundant number, since it is smaller than the sum of its proper divisors (649871493180).

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

243243531300 is a wasteful number, since it uses less digits than its factorization.

243243531300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504331 (or 1504317 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 243243531300 its reverse (3135342342), we get a palindrome (246378873642).

The spelling of 243243531300 in words is "two hundred forty-three billion, two hundred forty-three million, five hundred thirty-one thousand, three hundred".