20100020010000 has 1200 divisors, whose sum is σ = 79701527347200. Its totient is φ = 4338811008000.

The previous prime is 20100020009977. The next prime is 20100020010061. The reversal of 20100020010000 is 1002000102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1200).

It is a super-3 number, since 3×20100020010000³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 10697189061 + ... + 10697190939.

It is an arithmetic number, because the mean of its divisors is an integer number (66417939456).

Almost surely, 2^{20100020010000} is an apocalyptic number.

20100020010000 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 20100020010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39850763673600).

20100020010000 is an abundant number, since it is smaller than the sum of its proper divisors (59601507337200).

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

20100020010000 is a wasteful number, since it uses less digits than its factorization.

20100020010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326 (or 2298 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 20100020010000 its reverse (1002000102), we get a palindrome (20101022010102).

The spelling of 20100020010000 in words is "twenty trillion, one hundred billion, twenty million, ten thousand".