1003001200021 has 8 divisors (see below), whose sum is σ = 1046849935680. Its totient is φ = 959172463392.

The previous prime is 1003001199971. The next prime is 1003001200027. The reversal of 1003001200021 is 1200021003001.

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

It is a cyclic number.

It is not a de Polignac number, because 1003001200021 - 2⁹ = 1003001199509 is a prime.

It is a super-2 number, since 2×1003001200021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003001199980 and 1003001200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003001200027) 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, 4897216 + ... + 5097913.

It is an arithmetic number, because the mean of its divisors is an integer number (130856241960).

Almost surely, 2^{1003001200021} is an apocalyptic number.

It is an amenable number.

1003001200021 is a deficient number, since it is larger than the sum of its proper divisors (43848735659).

1003001200021 is an equidigital number, since it uses as much as digits as its factorization.

1003001200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9999515.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 1003001200021 its reverse (1200021003001), we get a palindrome (2203022203022).

The spelling of 1003001200021 in words is "one trillion, three billion, one million, two hundred thousand, twenty-one".