243420102200 has 48 divisors (see below), whose sum is σ = 617401901160. Its totient is φ = 88516400000.

The previous prime is 243420102199. The next prime is 243420102209. The reversal of 243420102200 is 2201024342.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243420102209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55320551 + ... + 55324950.

Almost surely, 2^243420102200 is an apocalyptic number.

243420102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243420102200 is an abundant number, since it is smaller than the sum of its proper divisors (373981798960).

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

243420102200 is a wasteful number, since it uses less digits than its factorization.

243420102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110645528 (or 110645519 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 243420102200 its reverse (2201024342), we get a palindrome (245621126542).

The spelling of 243420102200 in words is "two hundred forty-three billion, four hundred twenty million, one hundred two thousand, two hundred".