21328300110 has 32 divisors (see below), whose sum is σ = 55125453600. Its totient is φ = 5250043008.

The previous prime is 21328300099. The next prime is 21328300127. The reversal of 21328300110 is 1100382312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27343585 + ... + 27344364.

It is an arithmetic number, because the mean of its divisors is an integer number (1722670425).

Almost surely, 2^21328300110 is an apocalyptic number.

21328300110 is an abundant number, since it is smaller than the sum of its proper divisors (33797153490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21328300110 is a wasteful number, since it uses less digits than its factorization.

21328300110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54687972.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21328300110 its reverse (1100382312), we get a palindrome (22428682422).

The spelling of 21328300110 in words is "twenty-one billion, three hundred twenty-eight million, three hundred thousand, one hundred ten".