443200121 has 16 divisors (see below), whose sum is σ = 546209664. Its totient is φ = 350193024.

The previous prime is 443200111. The next prime is 443200141. The reversal of 443200121 is 121002344.

It is a cyclic number.

It is not a de Polignac number, because 443200121 - 2²² = 439005817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 443200121.

It is not an unprimeable number, because it can be changed into a prime (443200111) 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, 75146 + ... + 80828.

It is an arithmetic number, because the mean of its divisors is an integer number (34138104).

Almost surely, 2^443200121 is an apocalyptic number.

It is an amenable number.

443200121 is a deficient number, since it is larger than the sum of its proper divisors (103009543).

443200121 is a wasteful number, since it uses less digits than its factorization.

443200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6560.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 443200121 is about 21052.3186608981. The cubic root of 443200121 is about 762.4299652956.

Adding to 443200121 its reverse (121002344), we get a palindrome (564202465).

The spelling of 443200121 in words is "four hundred forty-three million, two hundred thousand, one hundred twenty-one".