243020120 has 64 divisors (see below), whose sum is σ = 640180800. Its totient is φ = 81285120.

The previous prime is 243020119. The next prime is 243020137. The reversal of 243020120 is 21020342.

243020120 is digitally balanced in base 2, 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 (14).

It is a junction number, because it is equal to n+sod(n) for n = 243020095 and 243020104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 896 + ... + 22064.

It is an arithmetic number, because the mean of its divisors is an integer number (10002825).

Almost surely, 2^243020120 is an apocalyptic number.

243020120 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 243020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320090400).

243020120 is an abundant number, since it is smaller than the sum of its proper divisors (397160680).

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

243020120 is a wasteful number, since it uses less digits than its factorization.

243020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21228 (or 21224 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 243020120 is about 15589.1026040629. The cubic root of 243020120 is about 624.0423691919.

Adding to 243020120 its reverse (21020342), we get a palindrome (264040462).

The spelling of 243020120 in words is "two hundred forty-three million, twenty thousand, one hundred twenty".