20111121000102 has 64 divisors (see below), whose sum is σ = 45841296764160. Its totient is φ = 5825872752000.

The previous prime is 20111120999909. The next prime is 20111121000149. The reversal of 20111121000102 is 20100012111102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51823408 + ... + 52210035.

It is an arithmetic number, because the mean of its divisors is an integer number (716270261940).

Almost surely, 2^{20111121000102} is an apocalyptic number.

20111121000102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20111121000102 is an abundant number, since it is smaller than the sum of its proper divisors (25730175764058).

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

20111121000102 is a wasteful number, since it uses less digits than its factorization.

20111121000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104033589.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20111121000102 its reverse (20100012111102), we get a palindrome (40211133111204).

The spelling of 20111121000102 in words is "twenty trillion, one hundred eleven billion, one hundred twenty-one million, one hundred two", and thus it is an aban number.