243105233412 has 48 divisors (see below), whose sum is σ = 575716305024. Its totient is φ = 79826880000.

The previous prime is 243105233369. The next prime is 243105233419. The reversal of 243105233412 is 214332501342.

It is a self number, because there is not a number n which added to its sum of digits gives 243105233412.

It is not an unprimeable number, because it can be changed into a prime (243105233419) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 904462 + ... + 1142042.

It is an arithmetic number, because the mean of its divisors is an integer number (11994089688).

Almost surely, 2^243105233412 is an apocalyptic number.

It is an amenable number.

243105233412 is an abundant number, since it is smaller than the sum of its proper divisors (332611071612).

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

243105233412 is a wasteful number, since it uses less digits than its factorization.

243105233412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238860 (or 238858 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 243105233412 its reverse (214332501342), we get a palindrome (457437734754).

The spelling of 243105233412 in words is "two hundred forty-three billion, one hundred five million, two hundred thirty-three thousand, four hundred twelve".