243113315202 has 48 divisors (see below), whose sum is σ = 530698546872. Its totient is φ = 80429856000.

The previous prime is 243113315201. The next prime is 243113315231. The reversal of 243113315202 is 202513311342.

243113315202 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 133 + 1 + 520 + 2 = 666.

243113315202 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 209682483921 + 33430831281 = 457911^2 + 182841^2 .

It is not an unprimeable number, because it can be changed into a prime (243113315201) 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 23 ways as a sum of consecutive naturals, for example, 20957668 + ... + 20969264.

Almost surely, 2^243113315202 is an apocalyptic number.

243113315202 is an abundant number, since it is smaller than the sum of its proper divisors (287585231670).

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

243113315202 is a wasteful number, since it uses less digits than its factorization.

243113315202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20243 (or 20240 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 243113315202 its reverse (202513311342), we get a palindrome (445626626544).

The spelling of 243113315202 in words is "two hundred forty-three billion, one hundred thirteen million, three hundred fifteen thousand, two hundred two".