21043030001 has 8 divisors (see below), whose sum is σ = 24055307904. Its totient is φ = 18032284800.

The previous prime is 21043029991. The next prime is 21043030003. The reversal of 21043030001 is 10003034012.

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 21043030001 - 2⁶ = 21043029937 is a prime.

It is a super-2 number, since 2×21043030001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 353600 + ... + 408801.

It is an arithmetic number, because the mean of its divisors is an integer number (3006913488).

Almost surely, 2^21043030001 is an apocalyptic number.

It is an amenable number.

21043030001 is a deficient number, since it is larger than the sum of its proper divisors (3012277903).

21043030001 is an equidigital number, since it uses as much as digits as its factorization.

21043030001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766351.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21043030001 its reverse (10003034012), we get a palindrome (31046064013).

The spelling of 21043030001 in words is "twenty-one billion, forty-three million, thirty thousand, one".