243034304212 has 48 divisors (see below), whose sum is σ = 492817575040. Its totient is φ = 102711877632.

The previous prime is 243034304207. The next prime is 243034304251. The reversal of 243034304212 is 212403430342.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 21188503 + ... + 21199969.

Almost surely, 2^243034304212 is an apocalyptic number.

It is an amenable number.

243034304212 is an abundant number, since it is smaller than the sum of its proper divisors (249783270828).

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

243034304212 is a wasteful number, since it uses less digits than its factorization.

243034304212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21920 (or 21918 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 243034304212 its reverse (212403430342), we get a palindrome (455437734554).

The spelling of 243034304212 in words is "two hundred forty-three billion, thirty-four million, three hundred four thousand, two hundred twelve".