243021102203 has 16 divisors (see below), whose sum is σ = 280091036160. Its totient is φ = 208771533600.

The previous prime is 243021102197. The next prime is 243021102257. The reversal of 243021102203 is 302201120342.

It is not a de Polignac number, because 243021102203 - 2⁴ = 243021102187 is a prime.

It is a super-2 number, since 2×243021102203² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243021104203) 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 15 ways as a sum of consecutive naturals, for example, 8089493 + ... + 8119478.

It is an arithmetic number, because the mean of its divisors is an integer number (17505689760).

Almost surely, 2^243021102203 is an apocalyptic number.

243021102203 is a deficient number, since it is larger than the sum of its proper divisors (37069933957).

243021102203 is a wasteful number, since it uses less digits than its factorization.

243021102203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16209058.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 243021102203 its reverse (302201120342), we get a palindrome (545222222545).

The spelling of 243021102203 in words is "two hundred forty-three billion, twenty-one million, one hundred two thousand, two hundred three".