10003321121021 has 8 divisors (see below), whose sum is σ = 10082741848824. Its totient is φ = 9924099194880.

The previous prime is 10003321120967. The next prime is 10003321121047. The reversal of 10003321121021 is 12012112330001.

10003321121021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4307031964921 + 5696289156100 = 2075339^2 + 2386690^2 .

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 10003321121021 - 2²² = 10003316926717 is a prime.

It is a super-2 number, since 2×10003321121021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10003321123021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49599380 + ... + 49800653.

It is an arithmetic number, because the mean of its divisors is an integer number (1260342731103).

Almost surely, 2^{10003321121021} is an apocalyptic number.

It is an amenable number.

10003321121021 is a deficient number, since it is larger than the sum of its proper divisors (79420727803).

10003321121021 is an equidigital number, since it uses as much as digits as its factorization.

10003321121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99400831.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10003321121021 its reverse (12012112330001), we get a palindrome (22015433451022).

The spelling of 10003321121021 in words is "ten trillion, three billion, three hundred twenty-one million, one hundred twenty-one thousand, twenty-one".