243113322103 has 4 divisors (see below), whose sum is σ = 243115130968. Its totient is φ = 243111513240.

The previous prime is 243113322091. The next prime is 243113322107. The reversal of 243113322103 is 301223311342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243113322103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243113322107) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 685101 + ... + 977542.

It is an arithmetic number, because the mean of its divisors is an integer number (60778782742).

Almost surely, 2^243113322103 is an apocalyptic number.

243113322103 is a deficient number, since it is larger than the sum of its proper divisors (1808865).

243113322103 is a wasteful number, since it uses less digits than its factorization.

243113322103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808864.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 243113322103 its reverse (301223311342), we get a palindrome (544336633445).

The spelling of 243113322103 in words is "two hundred forty-three billion, one hundred thirteen million, three hundred twenty-two thousand, one hundred three".