320043240232 has 32 divisors (see below), whose sum is σ = 609247794600. Its totient is φ = 157595203584.

The previous prime is 320043240217. The next prime is 320043240239. The reversal of 320043240232 is 232042340023.

It can be written as a sum of positive squares in 4 ways, for example, as 43499776356 + 276543463876 = 208566^2 + 525874^2 .

It is a junction number, because it is equal to n+sod(n) for n = 320043240197 and 320043240206.

It is not an unprimeable number, because it can be changed into a prime (320043240239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985557 + ... + 1269412.

Almost surely, 2^320043240232 is an apocalyptic number.

It is an amenable number.

320043240232 is a deficient number, since it is larger than the sum of its proper divisors (289204554368).

320043240232 is a wasteful number, since it uses less digits than its factorization.

320043240232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255245 (or 2255241 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 320043240232 its reverse (232042340023), we get a palindrome (552085580255).

The spelling of 320043240232 in words is "three hundred twenty billion, forty-three million, two hundred forty thousand, two hundred thirty-two".