243430135253 has 8 divisors (see below), whose sum is σ = 245152118400. Its totient is φ = 241709328720.

The previous prime is 243430135199. The next prime is 243430135261. The reversal of 243430135253 is 352531034342.

243430135253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243430135253 - 2¹⁸ = 243429873109 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 (243430135453) 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 7 ways as a sum of consecutive naturals, for example, 123176 + ... + 708542.

It is an arithmetic number, because the mean of its divisors is an integer number (30644014800).

Almost surely, 2^243430135253 is an apocalyptic number.

It is an amenable number.

243430135253 is a deficient number, since it is larger than the sum of its proper divisors (1721983147).

243430135253 is a wasteful number, since it uses less digits than its factorization.

243430135253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588307.

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 243430135253 its reverse (352531034342), we get a palindrome (595961169595).

The spelling of 243430135253 in words is "two hundred forty-three billion, four hundred thirty million, one hundred thirty-five thousand, two hundred fifty-three".