243322989900 has 36 divisors (see below), whose sum is σ = 704014518312. Its totient is φ = 64886130560.

The previous prime is 243322989887. The next prime is 243322989919. The reversal of 243322989900 is 9989223342.

243322989900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 405538017 + ... + 405538616.

It is an arithmetic number, because the mean of its divisors is an integer number (19555958842).

Almost surely, 2^243322989900 is an apocalyptic number.

243322989900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243322989900 is an abundant number, since it is smaller than the sum of its proper divisors (460691528412).

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

243322989900 is a wasteful number, since it uses less digits than its factorization.

243322989900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811076650 (or 811076643 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 243322989900 in words is "two hundred forty-three billion, three hundred twenty-two million, nine hundred eighty-nine thousand, nine hundred".