21011130332110 has 128 divisors (see below), whose sum is σ = 41109634252800. Its totient is φ = 7713253416960.

The previous prime is 21011130332039. The next prime is 21011130332161. The reversal of 21011130332110 is 1123303111012.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 136993887 + ... + 137147173.

It is an arithmetic number, because the mean of its divisors is an integer number (321169017600).

Almost surely, 2^{21011130332110} is an apocalyptic number.

21011130332110 is a deficient number, since it is larger than the sum of its proper divisors (20098503920690).

21011130332110 is a wasteful number, since it uses less digits than its factorization.

21011130332110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153626.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 21011130332110 its reverse (1123303111012), we get a palindrome (22134433443122).

The spelling of 21011130332110 in words is "twenty-one trillion, eleven billion, one hundred thirty million, three hundred thirty-two thousand, one hundred ten".