21100330302004 has 12 divisors (see below), whose sum is σ = 36945125727300. Its totient is φ = 10544580094208.

The previous prime is 21100330301903. The next prime is 21100330302013. The reversal of 21100330302004 is 40020303300112.

It can be written as a sum of positive squares in 2 ways, for example, as 4265885421604 + 16834444880400 = 2065402^2 + 4102980^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1396255699 + ... + 1396270810.

It is an arithmetic number, because the mean of its divisors is an integer number (3078760477275).

Almost surely, 2^{21100330302004} is an apocalyptic number.

It is an amenable number.

21100330302004 is a deficient number, since it is larger than the sum of its proper divisors (15844795425296).

21100330302004 is a wasteful number, since it uses less digits than its factorization.

21100330302004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792528402 (or 2792528400 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21100330302004 its reverse (40020303300112), we get a palindrome (61120633602116).

The spelling of 21100330302004 in words is "twenty-one trillion, one hundred billion, three hundred thirty million, three hundred two thousand, four".