243020302220 has 48 divisors (see below), whose sum is σ = 514031443968. Its totient is φ = 96507875520.

The previous prime is 243020302219. The next prime is 243020302223. The reversal of 243020302220 is 22203020342.

243020302220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×243020302220³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 243020302192 and 243020302201.

It is not an unprimeable number, because it can be changed into a prime (243020302223) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1562585 + ... + 1711055.

It is an arithmetic number, because the mean of its divisors is an integer number (10708988416).

Almost surely, 2^243020302220 is an apocalyptic number.

243020302220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243020302220 is an abundant number, since it is smaller than the sum of its proper divisors (271011141748).

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

243020302220 is a wasteful number, since it uses less digits than its factorization.

243020302220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149070 (or 149068 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 243020302220 its reverse (22203020342), we get a palindrome (265223322562).

The spelling of 243020302220 in words is "two hundred forty-three billion, twenty million, three hundred two thousand, two hundred twenty".