21113030204330 has 16 divisors (see below), whose sum is σ = 38005971258024. Its totient is φ = 8444652772800.

The previous prime is 21113030204251. The next prime is 21113030204407. The reversal of 21113030204330 is 3340203031112.

It can be written as a sum of positive squares in 4 ways, for example, as 16279667527249 + 4833362677081 = 4034807^2 + 2198491^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21113030204296 and 21113030204305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69755057 + ... + 70057076.

Almost surely, 2^{21113030204330} is an apocalyptic number.

21113030204330 is a deficient number, since it is larger than the sum of its proper divisors (16892941053694).

21113030204330 is a wasteful number, since it uses less digits than its factorization.

21113030204330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139827241.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21113030204330 its reverse (3340203031112), we get a palindrome (24453233235442).

The spelling of 21113030204330 in words is "twenty-one trillion, one hundred thirteen billion, thirty million, two hundred four thousand, three hundred thirty".