21301000110 has 160 divisors (see below), whose sum is σ = 61771181472. Its totient is φ = 5235736320.

The previous prime is 21301000109. The next prime is 21301000121. The reversal of 21301000110 is 1100010312.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 21301000092 and 21301000101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11761105 + ... + 11762915.

Almost surely, 2^21301000110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21301000110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30885590736).

21301000110 is an abundant number, since it is smaller than the sum of its proper divisors (40470181362).

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

21301000110 is a wasteful number, since it uses less digits than its factorization.

21301000110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960 (or 2951 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 21301000110 its reverse (1100010312), we get a palindrome (22401010422).

The spelling of 21301000110 in words is "twenty-one billion, three hundred one million, one hundred ten", and thus it is an aban number.