243213505532 has 24 divisors (see below), whose sum is σ = 451449638640. Its totient is φ = 114252952320.

The previous prime is 243213505529. The next prime is 243213505559. The reversal of 243213505532 is 235505312342.

It is a junction number, because it is equal to n+sod(n) for n = 243213505492 and 243213505501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3093107 + ... + 3170762.

It is an arithmetic number, because the mean of its divisors is an integer number (18810401610).

Almost surely, 2^243213505532 is an apocalyptic number.

It is an amenable number.

243213505532 is a deficient number, since it is larger than the sum of its proper divisors (208236133108).

243213505532 is a wasteful number, since it uses less digits than its factorization.

243213505532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6264461 (or 6264459 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 243213505532 its reverse (235505312342), we get a palindrome (478718817874).

The spelling of 243213505532 in words is "two hundred forty-three billion, two hundred thirteen million, five hundred five thousand, five hundred thirty-two".