20101011000000 has 784 divisors, whose sum is σ = 79281275186688. Its totient is φ = 4394649600000.

The previous prime is 20101010999989. The next prime is 20101011000041. The reversal of 20101011000000 is 11010102.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 482979192 + ... + 483020808.

Almost surely, 2^{20101011000000} is an apocalyptic number.

20101011000000 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 20101011000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39640637593344).

20101011000000 is an abundant number, since it is smaller than the sum of its proper divisors (59180264186688).

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

20101011000000 is an frugal number, since it uses more digits than its factorization.

20101011000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41692 (or 41657 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 20101011000000 its reverse (11010102), we get a palindrome (20101022010102).

The spelling of 20101011000000 in words is "twenty trillion, one hundred one billion, eleven million", and thus it is an aban number.