1001200443 has 16 divisors (see below), whose sum is σ = 1368761856. Its totient is φ = 650583360.

The previous prime is 1001200399. The next prime is 1001200457. The reversal of 1001200443 is 3440021001.

It is not a de Polignac number, because 1001200443 - 2⁹ = 1001199931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001200463) 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 15 ways as a sum of consecutive naturals, for example, 157146 + ... + 163392.

It is an arithmetic number, because the mean of its divisors is an integer number (85547616).

Almost surely, 2^1001200443 is an apocalyptic number.

1001200443 is a deficient number, since it is larger than the sum of its proper divisors (367561413).

1001200443 is a wasteful number, since it uses less digits than its factorization.

1001200443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7594.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1001200443 is about 31641.7515792031. The cubic root of 1001200443 is about 1000.3999876552.

Adding to 1001200443 its reverse (3440021001), we get a palindrome (4441221444).

The spelling of 1001200443 in words is "one billion, one million, two hundred thousand, four hundred forty-three".