243034344511 has 16 divisors (see below), whose sum is σ = 278224588800. Its totient is φ = 207962048448.

The previous prime is 243034344503. The next prime is 243034344523. The reversal of 243034344511 is 115443430342.

It is not a de Polignac number, because 243034344511 - 2³ = 243034344503 is a prime.

It is a super-2 number, since 2×243034344511² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243034344541) 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, 24873235 + ... + 24883003.

It is an arithmetic number, because the mean of its divisors is an integer number (17389036800).

Almost surely, 2^243034344511 is an apocalyptic number.

243034344511 is a deficient number, since it is larger than the sum of its proper divisors (35190244289).

243034344511 is an equidigital number, since it uses as much as digits as its factorization.

243034344511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15438.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 243034344511 its reverse (115443430342), we get a palindrome (358477774853).

The spelling of 243034344511 in words is "two hundred forty-three billion, thirty-four million, three hundred forty-four thousand, five hundred eleven".