21003021330230 has 8 divisors (see below), whose sum is σ = 37805438394432. Its totient is φ = 8401208532088.

The previous prime is 21003021330229. The next prime is 21003021330233. The reversal of 21003021330230 is 3203312030012.

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

It is a super-2 number, since 2×21003021330230² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21003021330233) 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 3 ways as a sum of consecutive naturals, for example, 1050151066502 + ... + 1050151066521.

It is an arithmetic number, because the mean of its divisors is an integer number (4725679799304).

Almost surely, 2^{21003021330230} is an apocalyptic number.

21003021330230 is a deficient number, since it is larger than the sum of its proper divisors (16802417064202).

21003021330230 is a wasteful number, since it uses less digits than its factorization.

21003021330230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100302133030.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21003021330230 its reverse (3203312030012), we get a palindrome (24206333360242).

The spelling of 21003021330230 in words is "twenty-one trillion, three billion, twenty-one million, three hundred thirty thousand, two hundred thirty".