20001100011020 has 12 divisors (see below), whose sum is σ = 42002310023184. Its totient is φ = 8000440004400.

The previous prime is 20001100010977. The next prime is 20001100011133. The reversal of 20001100011020 is 2011000110002.

It is a junction number, because it is equal to n+sod(n) for n = 20001100010989 and 20001100011007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500027500256 + ... + 500027500295.

It is an arithmetic number, because the mean of its divisors is an integer number (3500192501932).

Almost surely, 2^{20001100011020} is an apocalyptic number.

20001100011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001100011020 is an abundant number, since it is smaller than the sum of its proper divisors (22001210012164).

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

20001100011020 is a wasteful number, since it uses less digits than its factorization.

20001100011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000055000560 (or 1000055000558 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20001100011020 its reverse (2011000110002), we get a palindrome (22012100121022).

The spelling of 20001100011020 in words is "twenty trillion, one billion, one hundred million, eleven thousand, twenty".