21300110 has 16 divisors (see below), whose sum is σ = 41289696. Its totient is φ = 7864608.

The previous prime is 21300101. The next prime is 21300113. The reversal of 21300110 is 1100312.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81794 + ... + 82053.

It is an arithmetic number, because the mean of its divisors is an integer number (2580606).

Almost surely, 2^21300110 is an apocalyptic number.

21300110 is a deficient number, since it is larger than the sum of its proper divisors (19989586).

21300110 is a wasteful number, since it uses less digits than its factorization.

21300110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163867.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 21300110 is about 4615.2042208336. The cubic root of 21300110 is about 277.2004613571.

Adding to 21300110 its reverse (1100312), we get a palindrome (22400422).

The spelling of 21300110 in words is "twenty-one million, three hundred thousand, one hundred ten".