243134023133 has 4 divisors (see below), whose sum is σ = 243170140668. Its totient is φ = 243097905600.

The previous prime is 243134023123. The next prime is 243134023141. The reversal of 243134023133 is 331320431342.

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 132166421209 + 110967601924 = 363547^2 + 333118^2 .

It is a cyclic number.

It is not a de Polignac number, because 243134023133 - 2⁴ = 243134023117 is a prime.

It is a super-2 number, since 2×243134023133² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243134023096 and 243134023105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243134023123) 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 3 ways as a sum of consecutive naturals, for example, 18048668 + ... + 18062133.

It is an arithmetic number, because the mean of its divisors is an integer number (60792535167).

Almost surely, 2^243134023133 is an apocalyptic number.

It is an amenable number.

243134023133 is a deficient number, since it is larger than the sum of its proper divisors (36117535).

243134023133 is an equidigital number, since it uses as much as digits as its factorization.

243134023133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36117534.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 243134023133 its reverse (331320431342), we get a palindrome (574454454475).

The spelling of 243134023133 in words is "two hundred forty-three billion, one hundred thirty-four million, twenty-three thousand, one hundred thirty-three".