21410271232 has 104 divisors (see below), whose sum is σ = 49048494336. Its totient is φ = 9153970176.

The previous prime is 21410271221. The next prime is 21410271247. The reversal of 21410271232 is 23217201412.

It is a junction number, because it is equal to n+sod(n) for n = 21410271197 and 21410271206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19410393 + ... + 19411495.

Almost surely, 2^21410271232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21410271232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24524247168).

21410271232 is an abundant number, since it is smaller than the sum of its proper divisors (27638223104).

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

21410271232 is an equidigital number, since it uses as much as digits as its factorization.

21410271232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811 (or 1789 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 21410271232 its reverse (23217201412), we get a palindrome (44627472644).

The spelling of 21410271232 in words is "twenty-one billion, four hundred ten million, two hundred seventy-one thousand, two hundred thirty-two".