21140341033500 has 576 divisors, whose sum is σ = 72571412938752. Its totient is φ = 5149656000000.

The previous prime is 21140341033499. The next prime is 21140341033507. The reversal of 21140341033500 is 533014304112.

It is a happy number.

21140341033500 is a `hidden beast` number, since 2 + 1 + 140 + 3 + 4 + 10 + 3 + 3 + 500 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21140341033507) by changing a digit.

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 191 ways as a sum of consecutive naturals, for example, 2393874085 + ... + 2393882915.

It is an arithmetic number, because the mean of its divisors is an integer number (125992036352).

Almost surely, 2^{21140341033500} is an apocalyptic number.

21140341033500 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 21140341033500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36285706469376).

21140341033500 is an abundant number, since it is smaller than the sum of its proper divisors (51431071905252).

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

21140341033500 is a wasteful number, since it uses less digits than its factorization.

21140341033500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9291 (or 9276 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 21140341033500 its reverse (533014304112), we get a palindrome (21673355337612).

The spelling of 21140341033500 in words is "twenty-one trillion, one hundred forty billion, three hundred forty-one million, thirty-three thousand, five hundred".