243130442043 has 16 divisors (see below), whose sum is σ = 330319982880. Its totient is φ = 159014479104.

The previous prime is 243130442029. The next prime is 243130442057. The reversal of 243130442043 is 340244031342.

It is a happy number.

243130442043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (243130442029) and next prime (243130442057).

It is not a de Polignac number, because 243130442043 - 2²⁰ = 243129393467 is a prime.

It is a super-2 number, since 2×243130442043² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243130442043.

It is not an unprimeable number, because it can be changed into a prime (243130446043) 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, 1888455 + ... + 2013087.

It is an arithmetic number, because the mean of its divisors is an integer number (20644998930).

Almost surely, 2^243130442043 is an apocalyptic number.

243130442043 is a deficient number, since it is larger than the sum of its proper divisors (87189540837).

243130442043 is a wasteful number, since it uses less digits than its factorization.

243130442043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136958.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 243130442043 its reverse (340244031342), we get a palindrome (583374473385).

The spelling of 243130442043 in words is "two hundred forty-three billion, one hundred thirty million, four hundred forty-two thousand, forty-three".