243015113203 has 16 divisors (see below), whose sum is σ = 264215377440. Its totient is φ = 222608742400.

The previous prime is 243015113161. The next prime is 243015113267. The reversal of 243015113203 is 302311510342.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243015113203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243015113503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124018 + ... + 708103.

It is an arithmetic number, because the mean of its divisors is an integer number (16513461090).

Almost surely, 2^243015113203 is an apocalyptic number.

243015113203 is a deficient number, since it is larger than the sum of its proper divisors (21200264237).

243015113203 is a wasteful number, since it uses less digits than its factorization.

243015113203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832598.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 243015113203 its reverse (302311510342), we get a palindrome (545326623545).

The spelling of 243015113203 in words is "two hundred forty-three billion, fifteen million, one hundred thirteen thousand, two hundred three".