20100003004021 has 8 divisors (see below), whose sum is σ = 20645575814144. Its totient is φ = 19554552798480.

The previous prime is 20100003004013. The next prime is 20100003004043. The reversal of 20100003004021 is 12040030000102.

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 20100003004021 - 2³ = 20100003004013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20100003003992 and 20100003004010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100003004721) 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, 30318765 + ... + 30974626.

It is an arithmetic number, because the mean of its divisors is an integer number (2580696976768).

Almost surely, 2^{20100003004021} is an apocalyptic number.

It is an amenable number.

20100003004021 is a deficient number, since it is larger than the sum of its proper divisors (545572810123).

20100003004021 is an equidigital number, since it uses as much as digits as its factorization.

20100003004021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61302291.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20100003004021 its reverse (12040030000102), we get a palindrome (32140033004123).

The spelling of 20100003004021 in words is "twenty trillion, one hundred billion, three million, four thousand, twenty-one".