100443021001 has 8 divisors (see below), whose sum is σ = 100960664000. Its totient is φ = 99925507440.

The previous prime is 100443020971. The next prime is 100443021013. The reversal of 100443021001 is 100120344001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100443021001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100443021031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1784986 + ... + 1840396.

It is an arithmetic number, because the mean of its divisors is an integer number (12620083000).

Almost surely, 2^100443021001 is an apocalyptic number.

It is an amenable number.

100443021001 is a deficient number, since it is larger than the sum of its proper divisors (517642999).

100443021001 is an equidigital number, since it uses as much as digits as its factorization.

100443021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64719.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 100443021001 its reverse (100120344001), we get a palindrome (200563365002).

The spelling of 100443021001 in words is "one hundred billion, four hundred forty-three million, twenty-one thousand, one".