243331102220 has 72 divisors (see below), whose sum is σ = 536894631504. Its totient is φ = 92627210368.

The previous prime is 243331102219. The next prime is 243331102247. The reversal of 243331102220 is 22201133342.

243331102220 is digitally balanced in base 3, 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 (23).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2025887 + ... + 2142633.

It is an arithmetic number, because the mean of its divisors is an integer number (7456869882).

Almost surely, 2^243331102220 is an apocalyptic number.

243331102220 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 243331102220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268447315752).

243331102220 is an abundant number, since it is smaller than the sum of its proper divisors (293563529284).

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

243331102220 is a wasteful number, since it uses less digits than its factorization.

243331102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116999 (or 116974 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 243331102220 its reverse (22201133342), we get a palindrome (265532235562).

The spelling of 243331102220 in words is "two hundred forty-three billion, three hundred thirty-one million, one hundred two thousand, two hundred twenty".