243234044412203 has 4 divisors (see below), whose sum is σ = 261944355520848. Its totient is φ = 224523733303560.

The previous prime is 243234044412187. The next prime is 243234044412209. The reversal of 243234044412203 is 302214440432342.

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

It is a cyclic number.

It is not a de Polignac number, because 243234044412203 - 2⁴ = 243234044412187 is a prime.

It is a super-2 number, since 2×243234044412203² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243234044412209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9355155554303 + ... + 9355155554328.

It is an arithmetic number, because the mean of its divisors is an integer number (65486088880212).

Almost surely, 2^{243234044412203} is an apocalyptic number.

243234044412203 is a deficient number, since it is larger than the sum of its proper divisors (18710311108645).

243234044412203 is a wasteful number, since it uses less digits than its factorization.

243234044412203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18710311108644.

The product of its (nonzero) digits is 442368, while the sum is 38.

Adding to 243234044412203 its reverse (302214440432342), we get a palindrome (545448484844545).

The spelling of 243234044412203 in words is "two hundred forty-three trillion, two hundred thirty-four billion, forty-four million, four hundred twelve thousand, two hundred three".