21344101140 has 48 divisors (see below), whose sum is σ = 59778657792. Its totient is φ = 5690315136.

The previous prime is 21344101087. The next prime is 21344101201. The reversal of 21344101140 is 4110144312.

It is a congruent number.

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, 204522 + ... + 290718.

It is an arithmetic number, because the mean of its divisors is an integer number (1245388704).

Almost surely, 2^21344101140 is an apocalyptic number.

21344101140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21344101140 is an abundant number, since it is smaller than the sum of its proper divisors (38434556652).

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

21344101140 is a wasteful number, since it uses less digits than its factorization.

21344101140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90336 (or 90334 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21344101140 its reverse (4110144312), we get a palindrome (25454245452).

The spelling of 21344101140 in words is "twenty-one billion, three hundred forty-four million, one hundred one thousand, one hundred forty".