21313101210000 has 200 divisors, whose sum is σ = 68965777261920. Its totient is φ = 5669925888000.

The previous prime is 21313101209999. The next prime is 21313101210019. The reversal of 21313101210000 is 1210131312.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 11722224 + ... + 13417776.

Almost surely, 2^{21313101210000} is an apocalyptic number.

21313101210000 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 21313101210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34482888630960).

21313101210000 is an abundant number, since it is smaller than the sum of its proper divisors (47652676051920).

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

21313101210000 is a wasteful number, since it uses less digits than its factorization.

21313101210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696003 (or 1695982 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 21313101210000 its reverse (1210131312), we get a palindrome (21314311341312).

The spelling of 21313101210000 in words is "twenty-one trillion, three hundred thirteen billion, one hundred one million, two hundred ten thousand".