43321323321 has 6 divisors (see below), whose sum is σ = 62575244810. Its totient is φ = 28880882208.

The previous prime is 43321323319. The next prime is 43321323347. The reversal of 43321323321 is 12332312334.

43321323321 is a `hidden beast` number, since 4 + 3 + 321 + 3 + 2 + 332 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23175495225 + 20145828096 = 152235^2 + 141936^2 .

It is not a de Polignac number, because 43321323321 - 2¹ = 43321323319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43321323371) 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 5 ways as a sum of consecutive naturals, for example, 2406740176 + ... + 2406740193.

Almost surely, 2^43321323321 is an apocalyptic number.

It is an amenable number.

43321323321 is a deficient number, since it is larger than the sum of its proper divisors (19253921489).

43321323321 is a wasteful number, since it uses less digits than its factorization.

43321323321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813480375 (or 4813480372 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 43321323321 its reverse (12332312334), we get a palindrome (55653635655).

The spelling of 43321323321 in words is "forty-three billion, three hundred twenty-one million, three hundred twenty-three thousand, three hundred twenty-one".