243410021000 has 128 divisors (see below), whose sum is σ = 589787827200. Its totient is φ = 93916076800.

The previous prime is 243410020969. The next prime is 243410021047. The reversal of 243410021000 is 120014342.

It is a self number, because there is not a number n which added to its sum of digits gives 243410021000.

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 31 ways as a sum of consecutive naturals, for example, 35463569 + ... + 35470431.

It is an arithmetic number, because the mean of its divisors is an integer number (4607717400).

Almost surely, 2^243410021000 is an apocalyptic number.

243410021000 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 243410021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294893913600).

243410021000 is an abundant number, since it is smaller than the sum of its proper divisors (346377806200).

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

243410021000 is a wasteful number, since it uses less digits than its factorization.

243410021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8136 (or 8122 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 243410021000 its reverse (120014342), we get a palindrome (243530035342).

The spelling of 243410021000 in words is "two hundred forty-three billion, four hundred ten million, twenty-one thousand".