21411301324 has 48 divisors (see below), whose sum is σ = 45201694720. Its totient is φ = 8693232336.

The previous prime is 21411301319. The next prime is 21411301333. The reversal of 21411301324 is 42310311412.

It is a junction number, because it is equal to n+sod(n) for n = 21411301295 and 21411301304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136309 + ... + 247795.

Almost surely, 2^21411301324 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 21411301324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22600847360).

21411301324 is an abundant number, since it is smaller than the sum of its proper divisors (23790393396).

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

21411301324 is a wasteful number, since it uses less digits than its factorization.

21411301324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111555 (or 111515 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21411301324 its reverse (42310311412), we get a palindrome (63721612736).

The spelling of 21411301324 in words is "twenty-one billion, four hundred eleven million, three hundred one thousand, three hundred twenty-four".