243103454311 has 4 divisors (see below), whose sum is σ = 243138334824. Its totient is φ = 243068573800.

The previous prime is 243103454309. The next prime is 243103454333. The reversal of 243103454311 is 113454301342.

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 243103454311 - 2¹ = 243103454309 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 (243103455311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17429800 + ... + 17443741.

It is an arithmetic number, because the mean of its divisors is an integer number (60784583706).

Almost surely, 2^243103454311 is an apocalyptic number.

243103454311 is a deficient number, since it is larger than the sum of its proper divisors (34880513).

243103454311 is an equidigital number, since it uses as much as digits as its factorization.

243103454311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34880512.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 243103454311 its reverse (113454301342), we get a palindrome (356557755653).

The spelling of 243103454311 in words is "two hundred forty-three billion, one hundred three million, four hundred fifty-four thousand, three hundred eleven".