20111011000000 has 98 divisors (see below), whose sum is σ = 49884098272244. Its totient is φ = 8044404000000.

The previous prime is 20111010999979. The next prime is 20111011000027. The reversal of 20111011000000 is 11011102.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 9055506 + ... + 11055505.

Almost surely, 2^{20111011000000} is an apocalyptic number.

20111011000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20111011000000 is an abundant number, since it is smaller than the sum of its proper divisors (29773087272244).

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

20111011000000 is an frugal number, since it uses more digits than its factorization.

20111011000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20111053 (or 20111018 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 20111011000000 its reverse (11011102), we get a palindrome (20111022011102).

The spelling of 20111011000000 in words is "twenty trillion, one hundred eleven billion, eleven million", and thus it is an aban number.