243943245120 has 112 divisors (see below), whose sum is σ = 775772936640. Its totient is φ = 64946282496.

The previous prime is 243943245113. The next prime is 243943245121. The reversal of 243943245120 is 21542349342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243943245121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388984 + ... + 799496.

Almost surely, 2^243943245120 is an apocalyptic number.

243943245120 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 243943245120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387886468320).

243943245120 is an abundant number, since it is smaller than the sum of its proper divisors (531829691520).

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

243943245120 is a wasteful number, since it uses less digits than its factorization.

243943245120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411152 (or 411142 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 243943245120 in words is "two hundred forty-three billion, nine hundred forty-three million, two hundred forty-five thousand, one hundred twenty".