2011011000020 has 72 divisors (see below), whose sum is σ = 4663946150304. Its totient is φ = 727810776000.

The previous prime is 2011011000007. The next prime is 2011011000049. The reversal of 2011011000020 is 200001101102.

It is a junction number, because it is equal to n+sod(n) for n = 2011010999971 and 2011011000007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1458566 + ... + 2479805.

Almost surely, 2^{2011011000020} is an apocalyptic number.

2011011000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011011000020 is an abundant number, since it is smaller than the sum of its proper divisors (2652935150284).

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

2011011000020 is a wasteful number, since it uses less digits than its factorization.

2011011000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3938613 (or 3938600 counting only the distinct ones).

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

Adding to 2011011000020 its reverse (200001101102), we get a palindrome (2211012101122).

The spelling of 2011011000020 in words is "two trillion, eleven billion, eleven million, twenty", and thus it is an aban number and an uban number.