243233010553 has 4 divisors (see below), whose sum is σ = 261943242148. Its totient is φ = 224522778960.

The previous prime is 243233010521. The next prime is 243233010593. The reversal of 243233010553 is 355010332342.

243233010553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 101817151744 + 141415858809 = 319088^2 + 376053^2 .

It is a cyclic number.

It is not a de Polignac number, because 243233010553 - 2⁵ = 243233010521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243233010593) 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 3 ways as a sum of consecutive naturals, for example, 9355115778 + ... + 9355115803.

It is an arithmetic number, because the mean of its divisors is an integer number (65485810537).

Almost surely, 2^243233010553 is an apocalyptic number.

It is an amenable number.

243233010553 is a deficient number, since it is larger than the sum of its proper divisors (18710231595).

243233010553 is a wasteful number, since it uses less digits than its factorization.

243233010553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18710231594.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 243233010553 its reverse (355010332342), we get a palindrome (598243342895).

The spelling of 243233010553 in words is "two hundred forty-three billion, two hundred thirty-three million, ten thousand, five hundred fifty-three".