21110300230 has 32 divisors (see below), whose sum is σ = 38319130080. Its totient is φ = 8372981760.

The previous prime is 21110300221. The next prime is 21110300231. The reversal of 21110300230 is 3200301112.

It is a self number, because there is not a number n which added to its sum of digits gives 21110300230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110300231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1840072 + ... + 1851508.

It is an arithmetic number, because the mean of its divisors is an integer number (1197472815).

Almost surely, 2^21110300230 is an apocalyptic number.

21110300230 is a deficient number, since it is larger than the sum of its proper divisors (17208829850).

21110300230 is a wasteful number, since it uses less digits than its factorization.

21110300230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12984.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21110300230 its reverse (3200301112), we get a palindrome (24310601342).

The spelling of 21110300230 in words is "twenty-one billion, one hundred ten million, three hundred thousand, two hundred thirty".