243434134023 has 16 divisors (see below), whose sum is σ = 332860534272. Its totient is φ = 158157272000.

The previous prime is 243434134001. The next prime is 243434134039. The reversal of 243434134023 is 320431434342.

It is a happy number.

243434134023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 243434134023 - 2¹⁶ = 243434068487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243434184023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 974193 + ... + 1198298.

It is an arithmetic number, because the mean of its divisors is an integer number (20803783392).

Almost surely, 2^243434134023 is an apocalyptic number.

243434134023 is a deficient number, since it is larger than the sum of its proper divisors (89426400249).

243434134023 is a wasteful number, since it uses less digits than its factorization.

243434134023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173446.

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 243434134023 its reverse (320431434342), we get a palindrome (563865568365).

The spelling of 243434134023 in words is "two hundred forty-three billion, four hundred thirty-four million, one hundred thirty-four thousand, twenty-three".