21073004310000 has 400 divisors, whose sum is σ = 72513378291200. Its totient is φ = 5256306432000.

The previous prime is 21073004309983. The next prime is 21073004310013. The reversal of 21073004310000 is 1340037012.

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

It is a super-2 number, since 2×21073004310000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 44796012 + ... + 45263988.

It is an arithmetic number, because the mean of its divisors is an integer number (181283445728).

Almost surely, 2^{21073004310000} is an apocalyptic number.

21073004310000 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 21073004310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36256689145600).

21073004310000 is an abundant number, since it is smaller than the sum of its proper divisors (51440373981200).

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

21073004310000 is a wasteful number, since it uses less digits than its factorization.

21073004310000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468106 (or 468085 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

Adding to 21073004310000 its reverse (1340037012), we get a palindrome (21074344347012).

The spelling of 21073004310000 in words is "twenty-one trillion, seventy-three billion, four million, three hundred ten thousand".