21030043410 has 96 divisors (see below), whose sum is σ = 58499737920. Its totient is φ = 5225731200.

The previous prime is 21030043393. The next prime is 21030043417. The reversal of 21030043410 is 1434003012.

21030043410 is a `hidden beast` number, since 21 + 0 + 300 + 4 + 341 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (21030043417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3505 + ... + 205115.

It is an arithmetic number, because the mean of its divisors is an integer number (609372270).

Almost surely, 2^21030043410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21030043410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29249868960).

21030043410 is an abundant number, since it is smaller than the sum of its proper divisors (37469694510).

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

21030043410 is a wasteful number, since it uses less digits than its factorization.

21030043410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201704 (or 201701 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21030043410 its reverse (1434003012), we get a palindrome (22464046422).

The spelling of 21030043410 in words is "twenty-one billion, thirty million, forty-three thousand, four hundred ten".