21043030002 has 8 divisors (see below), whose sum is σ = 42086060016. Its totient is φ = 7014343332.

The previous prime is 21043029991. The next prime is 21043030003. The reversal of 21043030002 is 20003034012.

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

21043030002 is an admirable number.

It is a super-2 number, since 2×21043030002² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21043030003) 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, 1753585828 + ... + 1753585839.

It is an arithmetic number, because the mean of its divisors is an integer number (5260757502).

Almost surely, 2^21043030002 is an apocalyptic number.

21043030002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21043030002 is a wasteful number, since it uses less digits than its factorization.

21043030002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507171672.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 21043030002 its reverse (20003034012), we get a palindrome (41046064014).

The spelling of 21043030002 in words is "twenty-one billion, forty-three million, thirty thousand, two".