243121234496 has 224 divisors, whose sum is σ = 593123731200. Its totient is φ = 96509952000.

The previous prime is 243121234441. The next prime is 243121234507. The reversal of 243121234496 is 694432121342.

It is a tau number, because it is divible by the number of its divisors (224).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170133110 + ... + 170134538.

It is an arithmetic number, because the mean of its divisors is an integer number (2647873800).

Almost surely, 2^243121234496 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 243121234496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296561865600).

243121234496 is an abundant number, since it is smaller than the sum of its proper divisors (350002496704).

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

243121234496 is a wasteful number, since it uses less digits than its factorization.

243121234496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805 (or 1795 counting only the distinct ones).

The product of its digits is 248832, while the sum is 41.

The spelling of 243121234496 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred thirty-four thousand, four hundred ninety-six".