21010314322140 has 432 divisors, whose sum is σ = 71294962513824. Its totient is φ = 4592230917120.

The previous prime is 21010314322079. The next prime is 21010314322159. The reversal of 21010314322140 is 4122341301012.

It is a self number, because there is not a number n which added to its sum of digits gives 21010314322140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 174448422 + ... + 174568818.

Almost surely, 2^{21010314322140} is an apocalyptic number.

21010314322140 is a gapful number since it is divisible by the number (20) 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 21010314322140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35647481256912).

21010314322140 is an abundant number, since it is smaller than the sum of its proper divisors (50284648191684).

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

21010314322140 is a wasteful number, since it uses less digits than its factorization.

21010314322140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120530 (or 120474 counting only the distinct ones).

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

Adding to 21010314322140 its reverse (4122341301012), we get a palindrome (25132655623152).

The spelling of 21010314322140 in words is "twenty-one trillion, ten billion, three hundred fourteen million, three hundred twenty-two thousand, one hundred forty".