243033643412 has 48 divisors (see below), whose sum is σ = 490420318080. Its totient is φ = 103226572800.

The previous prime is 243033643319. The next prime is 243033643417. The reversal of 243033643412 is 214346330342.

It is a happy number.

It is a super-2 number, since 2×243033643412² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243033643417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2777612 + ... + 2863772.

It is an arithmetic number, because the mean of its divisors is an integer number (10217089960).

Almost surely, 2^243033643412 is an apocalyptic number.

It is an amenable number.

243033643412 is an abundant number, since it is smaller than the sum of its proper divisors (247386674668).

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

243033643412 is a wasteful number, since it uses less digits than its factorization.

243033643412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87072 (or 87070 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 35.

Adding to 243033643412 its reverse (214346330342), we get a palindrome (457379973754).

The spelling of 243033643412 in words is "two hundred forty-three billion, thirty-three million, six hundred forty-three thousand, four hundred twelve".