10003330330321 has 4 divisors (see below), whose sum is σ = 10003338824292. Its totient is φ = 10003321836352.

The previous prime is 10003330330297. The next prime is 10003330330337. The reversal of 10003330330321 is 12303303330001.

10003330330321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8863934199696 + 1139396130625 = 2977236^2 + 1067425^2 .

It is a cyclic number.

It is not a de Polignac number, because 10003330330321 - 2²⁵ = 10003296775889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10003330330292 and 10003330330301.

It is not an unprimeable number, because it can be changed into a prime (10003330330421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2128036 + ... + 4953301.

It is an arithmetic number, because the mean of its divisors is an integer number (2500834706073).

Almost surely, 2^{10003330330321} is an apocalyptic number.

It is an amenable number.

10003330330321 is a deficient number, since it is larger than the sum of its proper divisors (8493971).

10003330330321 is an equidigital number, since it uses as much as digits as its factorization.

10003330330321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8493970.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 10003330330321 its reverse (12303303330001), we get a palindrome (22306633660322).

The spelling of 10003330330321 in words is "ten trillion, three billion, three hundred thirty million, three hundred thirty thousand, three hundred twenty-one".