243521103342 has 48 divisors (see below), whose sum is σ = 535404597840. Its totient is φ = 73785909120.

The previous prime is 243521103299. The next prime is 243521103373. The reversal of 243521103342 is 243301125342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10088784 + ... + 10112892.

It is an arithmetic number, because the mean of its divisors is an integer number (11154262455).

Almost surely, 2^243521103342 is an apocalyptic number.

243521103342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243521103342 is an abundant number, since it is smaller than the sum of its proper divisors (291883494498).

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

243521103342 is a wasteful number, since it uses less digits than its factorization.

243521103342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38049 (or 38038 counting only the distinct ones).

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

Adding to 243521103342 its reverse (243301125342), we get a palindrome (486822228684).

The spelling of 243521103342 in words is "two hundred forty-three billion, five hundred twenty-one million, one hundred three thousand, three hundred forty-two".