243100212 has 48 divisors (see below), whose sum is σ = 613247040. Its totient is φ = 74691072.

The previous prime is 243100181. The next prime is 243100223. The reversal of 243100212 is 212001342.

It is a junction number, because it is equal to n+sod(n) for n = 243100191 and 243100200.

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, 5973 + ... + 22844.

It is an arithmetic number, because the mean of its divisors is an integer number (12775980).

Almost surely, 2^243100212 is an apocalyptic number.

It is an amenable number.

243100212 is an abundant number, since it is smaller than the sum of its proper divisors (370146828).

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

243100212 is a wasteful number, since it uses less digits than its factorization.

243100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28880 (or 28878 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 243100212 is about 15591.6712381964. The cubic root of 243100212 is about 624.1109167560.

Adding to 243100212 its reverse (212001342), we get a palindrome (455101554).

The spelling of 243100212 in words is "two hundred forty-three million, one hundred thousand, two hundred twelve".