21333103040000 has 400 divisors, whose sum is σ = 54125358541056. Its totient is φ = 8395699200000.

The previous prime is 21333103039933. The next prime is 21333103040047. The reversal of 21333103040000 is 4030133312.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21970239515 + ... + 21970240485.

Almost surely, 2^{21333103040000} is an apocalyptic number.

21333103040000 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 21333103040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27062679270528).

21333103040000 is an abundant number, since it is smaller than the sum of its proper divisors (32792255501056).

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

21333103040000 is an frugal number, since it uses more digits than its factorization.

21333103040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047 (or 2016 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21333103040000 its reverse (4030133312), we get a palindrome (21337133173312).

The spelling of 21333103040000 in words is "twenty-one trillion, three hundred thirty-three billion, one hundred three million, forty thousand".