43223200321 has 12 divisors (see below), whose sum is σ = 50314736532. Its totient is φ = 37022898528.

The previous prime is 43223200309. The next prime is 43223200337. The reversal of 43223200321 is 12300232234.

It can be written as a sum of positive squares in 2 ways, for example, as 42215455296 + 1007745025 = 205464^2 + 31745^2 .

It is a de Polignac number, because none of the positive numbers 2^k-43223200321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43223200292 and 43223200301.

It is not an unprimeable number, because it can be changed into a prime (43223200021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232350 + ... + 374743.

It is an arithmetic number, because the mean of its divisors is an integer number (4192894711).

Almost surely, 2^43223200321 is an apocalyptic number.

It is an amenable number.

43223200321 is a deficient number, since it is larger than the sum of its proper divisors (7091536211).

43223200321 is a wasteful number, since it uses less digits than its factorization.

43223200321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608560 (or 608553 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 43223200321 its reverse (12300232234), we get a palindrome (55523432555).

The spelling of 43223200321 in words is "forty-three billion, two hundred twenty-three million, two hundred thousand, three hundred twenty-one".