21324333441100 has 72 divisors (see below), whose sum is σ = 46422356275568. Its totient is φ = 8502360134400.

The previous prime is 21324333441091. The next prime is 21324333441107. The reversal of 21324333441100 is 114433342312.

It is not an unprimeable number, because it can be changed into a prime (21324333441107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183878734 + ... + 183994666.

Almost surely, 2^{21324333441100} is an apocalyptic number.

21324333441100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21324333441100 is an abundant number, since it is smaller than the sum of its proper divisors (25098022834468).

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

21324333441100 is a wasteful number, since it uses less digits than its factorization.

21324333441100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121835 (or 121828 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 21324333441100 its reverse (114433342312), we get a palindrome (21438766783412).

The spelling of 21324333441100 in words is "twenty-one trillion, three hundred twenty-four billion, three hundred thirty-three million, four hundred forty-one thousand, one hundred".