20112110120111 has 16 divisors (see below), whose sum is σ = 21324204384480. Its totient is φ = 18903255275520.

The previous prime is 20112110120093. The next prime is 20112110120147. The reversal of 20112110120111 is 11102101121102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112110120111 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 (20112110120161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46216601 + ... + 46649741.

It is an arithmetic number, because the mean of its divisors is an integer number (1332762774030).

Almost surely, 2^{20112110120111} is an apocalyptic number.

20112110120111 is a deficient number, since it is larger than the sum of its proper divisors (1212094264369).

20112110120111 is a wasteful number, since it uses less digits than its factorization.

20112110120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436874.

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

Adding to 20112110120111 its reverse (11102101121102), we get a palindrome (31214211241213).

The spelling of 20112110120111 in words is "twenty trillion, one hundred twelve billion, one hundred ten million, one hundred twenty thousand, one hundred eleven".