20102101112111 has 8 divisors (see below), whose sum is σ = 20105753748480. Its totient is φ = 20098448761912.

The previous prime is 20102101112087. The next prime is 20102101112113. The reversal of 20102101112111 is 11121110120102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20102101112111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102101112113) by changing a digit.

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, 179262086 + ... + 179374188.

It is an arithmetic number, because the mean of its divisors is an integer number (2513219218560).

Almost surely, 2^{20102101112111} is an apocalyptic number.

20102101112111 is a deficient number, since it is larger than the sum of its proper divisors (3652636369).

20102101112111 is a wasteful number, since it uses less digits than its factorization.

20102101112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143085.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 20102101112111 its reverse (11121110120102), we get a palindrome (31223211232213).

The spelling of 20102101112111 in words is "twenty trillion, one hundred two billion, one hundred one million, one hundred twelve thousand, one hundred eleven".