243053322543 has 40 divisors (see below), whose sum is σ = 368346147840. Its totient is φ = 159687113040.

The previous prime is 243053322521. The next prime is 243053322557. The reversal of 243053322543 is 345223350342.

It is a happy number.

243053322543 is a `hidden beast` number, since 2 + 4 + 30 + 53 + 32 + 2 + 543 = 666.

It is not a de Polignac number, because 243053322543 - 2⁸ = 243053322287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243053322498 and 243053322507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243053322563) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16595818 + ... + 16610456.

It is an arithmetic number, because the mean of its divisors is an integer number (9208653696).

Almost surely, 2^243053322543 is an apocalyptic number.

243053322543 is a deficient number, since it is larger than the sum of its proper divisors (125292825297).

243053322543 is a wasteful number, since it uses less digits than its factorization.

243053322543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17609 (or 17600 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 36.

Adding to 243053322543 its reverse (345223350342), we get a palindrome (588276672885).

The spelling of 243053322543 in words is "two hundred forty-three billion, fifty-three million, three hundred twenty-two thousand, five hundred forty-three".