21323302010010 has 384 divisors, whose sum is σ = 76449550754304. Its totient is φ = 3979443271680.

The previous prime is 21323302009939. The next prime is 21323302010027. The reversal of 21323302010010 is 1001020332312.

21323302010010 is a `hidden beast` number, since 2 + 132 + 330 + 201 + 0 + 0 + 1 + 0 = 666.

It is a super-2 number, since 2×21323302010010² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 134832 + ... + 6531828.

It is an arithmetic number, because the mean of its divisors is an integer number (199087371756).

Almost surely, 2^{21323302010010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21323302010010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38224775377152).

21323302010010 is an abundant number, since it is smaller than the sum of its proper divisors (55126248744294).

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

21323302010010 is a wasteful number, since it uses less digits than its factorization.

21323302010010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6397078 (or 6397075 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21323302010010 its reverse (1001020332312), we get a palindrome (22324322342322).

The spelling of 21323302010010 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred two million, ten thousand, ten".