43005220361 has 16 divisors (see below), whose sum is σ = 44631674880. Its totient is φ = 41403700800.

The previous prime is 43005220343. The next prime is 43005220373. The reversal of 43005220361 is 16302250034.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43005220361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43005220361.

It is not an unprimeable number, because it can be changed into a prime (43005420361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10338200 + ... + 10342358.

It is an arithmetic number, because the mean of its divisors is an integer number (2789479680).

Almost surely, 2^43005220361 is an apocalyptic number.

It is an amenable number.

43005220361 is a deficient number, since it is larger than the sum of its proper divisors (1626454519).

43005220361 is a wasteful number, since it uses less digits than its factorization.

43005220361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7064.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 43005220361 its reverse (16302250034), we get a palindrome (59307470395).

The spelling of 43005220361 in words is "forty-three billion, five million, two hundred twenty thousand, three hundred sixty-one".