21300142110 has 64 divisors (see below), whose sum is σ = 55329523200. Its totient is φ = 5216745600.

The previous prime is 21300142103. The next prime is 21300142141. The reversal of 21300142110 is 1124100312.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21300142110.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 59616 + ... + 214835.

It is an arithmetic number, because the mean of its divisors is an integer number (864523800).

Almost surely, 2^21300142110 is an apocalyptic number.

21300142110 is an abundant number, since it is smaller than the sum of its proper divisors (34029381090).

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

21300142110 is a wasteful number, since it uses less digits than its factorization.

21300142110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274673.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21300142110 its reverse (1124100312), we get a palindrome (22424242422).

The spelling of 21300142110 in words is "twenty-one billion, three hundred million, one hundred forty-two thousand, one hundred ten".