243942220120 has 32 divisors (see below), whose sum is σ = 581156467200. Its totient is φ = 91837070848.

The previous prime is 243942220099. The next prime is 243942220133. The reversal of 243942220120 is 21022249342.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 179368600 + ... + 179369959.

It is an arithmetic number, because the mean of its divisors is an integer number (18161139600).

Almost surely, 2^243942220120 is an apocalyptic number.

243942220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243942220120 is an abundant number, since it is smaller than the sum of its proper divisors (337214247080).

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

243942220120 is a wasteful number, since it uses less digits than its factorization.

243942220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358738587 (or 358738583 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 243942220120 its reverse (21022249342), we get a palindrome (264964469462).

It can be divided in two parts, 2439422 and 20120, that added together give a palindrome (2459542).

The spelling of 243942220120 in words is "two hundred forty-three billion, nine hundred forty-two million, two hundred twenty thousand, one hundred twenty".