21110211323102 has 32 divisors (see below), whose sum is σ = 34593504745824. Its totient is φ = 9581797814400.

The previous prime is 21110211323099. The next prime is 21110211323119. The reversal of 21110211323102 is 20132311201112.

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 15 ways as a sum of consecutive naturals, for example, 127070852 + ... + 127236872.

It is an arithmetic number, because the mean of its divisors is an integer number (1081047023307).

Almost surely, 2^{21110211323102} is an apocalyptic number.

21110211323102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21110211323102 is a deficient number, since it is larger than the sum of its proper divisors (13483293422722).

21110211323102 is a wasteful number, since it uses less digits than its factorization.

21110211323102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174284.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 21110211323102 its reverse (20132311201112), we get a palindrome (41242522524214).

The spelling of 21110211323102 in words is "twenty-one trillion, one hundred ten billion, two hundred eleven million, three hundred twenty-three thousand, one hundred two".