243320511532 has 24 divisors (see below), whose sum is σ = 486945073440. Its totient is φ = 104215065600.

The previous prime is 243320511493. The next prime is 243320511557. The reversal of 243320511532 is 235115023342.

It is a junction number, because it is equal to n+sod(n) for n = 243320511494 and 243320511503.

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, 2669107 + ... + 2758762.

It is an arithmetic number, because the mean of its divisors is an integer number (20289378060).

Almost surely, 2^243320511532 is an apocalyptic number.

It is an amenable number.

243320511532 is an abundant number, since it is smaller than the sum of its proper divisors (243624561908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243320511532 is a wasteful number, since it uses less digits than its factorization.

243320511532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5429481 (or 5429479 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 243320511532 its reverse (235115023342), we get a palindrome (478435534874).

The spelling of 243320511532 in words is "two hundred forty-three billion, three hundred twenty million, five hundred eleven thousand, five hundred thirty-two".