21010303100330 has 16 divisors (see below), whose sum is σ = 38208427495560. Its totient is φ = 8317480814592.

The previous prime is 21010303100291. The next prime is 21010303100377. The reversal of 21010303100330 is 3300130301012.

It can be written as a sum of positive squares in 4 ways, for example, as 19787666478889 + 1222636621441 = 4448333^2 + 1105729^2 .

It is a super-2 number, since 2×21010303100330² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21010303100299 and 21010303100308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10830052175 + ... + 10830054114.

Almost surely, 2^{21010303100330} is an apocalyptic number.

21010303100330 is a deficient number, since it is larger than the sum of its proper divisors (17198124395230).

21010303100330 is a wasteful number, since it uses less digits than its factorization.

21010303100330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21660106393.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 21010303100330 its reverse (3300130301012), we get a palindrome (24310433401342).

The spelling of 21010303100330 in words is "twenty-one trillion, ten billion, three hundred three million, one hundred thousand, three hundred thirty".