21411334014 has 64 divisors (see below), whose sum is σ = 50853937152. Its totient is φ = 5880924000.

The previous prime is 21411333973. The next prime is 21411334031. The reversal of 21411334014 is 41043311412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142149 + ... + 251055.

It is an arithmetic number, because the mean of its divisors is an integer number (794592768).

Almost surely, 2^21411334014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21411334014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25426968576).

21411334014 is an abundant number, since it is smaller than the sum of its proper divisors (29442603138).

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

21411334014 is a wasteful number, since it uses less digits than its factorization.

21411334014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109101.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21411334014 its reverse (41043311412), we get a palindrome (62454645426).

The spelling of 21411334014 in words is "twenty-one billion, four hundred eleven million, three hundred thirty-four thousand, fourteen".