10002443357021 has 8 divisors (see below), whose sum is σ = 10070974841400. Its totient is φ = 9933930552832.

The previous prime is 10002443356981. The next prime is 10002443357063. The reversal of 10002443357021 is 12075334420001.

It can be written as a sum of positive squares in 4 ways, for example, as 93231904921 + 9909211452100 = 305339^2 + 3147890^2 .

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 10002443357021 - 2³⁰ = 10001369615197 is a prime.

It is a super-2 number, since 2×10002443357021² (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 (10002443357821) 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 7 ways as a sum of consecutive naturals, for example, 3594620 + ... + 5738133.

It is an arithmetic number, because the mean of its divisors is an integer number (1258871855175).

Almost surely, 2^{10002443357021} is an apocalyptic number.

It is an amenable number.

10002443357021 is a deficient number, since it is larger than the sum of its proper divisors (68531484379).

10002443357021 is an equidigital number, since it uses as much as digits as its factorization.

10002443357021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9340095.

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 10002443357021 its reverse (12075334420001), we get a palindrome (22077777777022).

The spelling of 10002443357021 in words is "ten trillion, two billion, four hundred forty-three million, three hundred fifty-seven thousand, twenty-one".