20105030510000 has 100 divisors (see below), whose sum is σ = 48769730584344. Its totient is φ = 8026574400000.

The previous prime is 20105030509939. The next prime is 20105030510003. The reversal of 20105030510000 is 1503050102.

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (20105030510003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3280535 + ... + 7139465.

Almost surely, 2^{20105030510000} is an apocalyptic number.

20105030510000 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 20105030510000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24384865292172).

20105030510000 is an abundant number, since it is smaller than the sum of its proper divisors (28664700074344).

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

20105030510000 is an equidigital number, since it uses as much as digits as its factorization.

20105030510000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3859480 (or 3859459 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

Adding to 20105030510000 its reverse (1503050102), we get a palindrome (20106533560102).

The spelling of 20105030510000 in words is "twenty trillion, one hundred five billion, thirty million, five hundred ten thousand".