20111120012102 has 16 divisors (see below), whose sum is σ = 35588341404672. Its totient is φ = 8341017516360.

The previous prime is 20111120012089. The next prime is 20111120012111. The reversal of 20111120012102 is 20121002111102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23169492668 + ... + 23169493535.

It is an arithmetic number, because the mean of its divisors is an integer number (2224271337792).

Almost surely, 2^{20111120012102} is an apocalyptic number.

20111120012102 is a deficient number, since it is larger than the sum of its proper divisors (15477221392570).

20111120012102 is a wasteful number, since it uses less digits than its factorization.

20111120012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46338986243.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20111120012102 its reverse (20121002111102), we get a palindrome (40232122123204).

The spelling of 20111120012102 in words is "twenty trillion, one hundred eleven billion, one hundred twenty million, twelve thousand, one hundred two".