243205340502 has 8 divisors (see below), whose sum is σ = 486410681016. Its totient is φ = 81068446832.

The previous prime is 243205340489. The next prime is 243205340549. The reversal of 243205340502 is 205043502342.

243205340502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

243205340502 is an admirable number.

It is a super-2 number, since 2×243205340502² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243205340502.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20267111703 + ... + 20267111714.

It is an arithmetic number, because the mean of its divisors is an integer number (60801335127).

Almost surely, 2^243205340502 is an apocalyptic number.

243205340502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

243205340502 is a wasteful number, since it uses less digits than its factorization.

243205340502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40534223422.

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 243205340502 its reverse (205043502342), we get a palindrome (448248842844).

The spelling of 243205340502 in words is "two hundred forty-three billion, two hundred five million, three hundred forty thousand, five hundred two".