243141213522 has 16 divisors (see below), whose sum is σ = 486542911392. Its totient is φ = 81003657120.

The previous prime is 243141213521. The next prime is 243141213529. The reversal of 243141213522 is 225312141342.

It is a happy number.

243141213522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 243141213522.

It is not an unprimeable number, because it can be changed into a prime (243141213521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10841379 + ... + 10863782.

It is an arithmetic number, because the mean of its divisors is an integer number (30408931962).

Almost surely, 2^243141213522 is an apocalyptic number.

243141213522 is an abundant number, since it is smaller than the sum of its proper divisors (243401697870).

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

243141213522 is a wasteful number, since it uses less digits than its factorization.

243141213522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21707033.

The product of its digits is 11520, while the sum is 30.

Adding to 243141213522 its reverse (225312141342), we get a palindrome (468453354864).

The spelling of 243141213522 in words is "two hundred forty-three billion, one hundred forty-one million, two hundred thirteen thousand, five hundred twenty-two".