21014311044232 has 64 divisors (see below), whose sum is σ = 43634176439040. Its totient is φ = 9407493057600.

The previous prime is 21014311044229. The next prime is 21014311044253. The reversal of 21014311044232 is 23244011341012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21014311044232.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29046007 + ... + 29760697.

It is an arithmetic number, because the mean of its divisors is an integer number (681784006860).

Almost surely, 2^{21014311044232} is an apocalyptic number.

21014311044232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21014311044232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21817088219520).

21014311044232 is an abundant number, since it is smaller than the sum of its proper divisors (22619865394808).

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

21014311044232 is a wasteful number, since it uses less digits than its factorization.

21014311044232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719762 (or 719758 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 21014311044232 its reverse (23244011341012), we get a palindrome (44258322385244).

The spelling of 21014311044232 in words is "twenty-one trillion, fourteen billion, three hundred eleven million, forty-four thousand, two hundred thirty-two".