2011012102111 has 4 divisors (see below), whose sum is σ = 2013497902800. Its totient is φ = 2008526301424.

The previous prime is 2011012102087. The next prime is 2011012102139. The reversal of 2011012102111 is 1112012101102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2011012102111 - 2⁵ = 2011012102079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011012102091 and 2011012102100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011012132111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242899131 + ... + 1242900748.

It is an arithmetic number, because the mean of its divisors is an integer number (503374475700).

Almost surely, 2^{2011012102111} is an apocalyptic number.

2011012102111 is a deficient number, since it is larger than the sum of its proper divisors (2485800689).

2011012102111 is an equidigital number, since it uses as much as digits as its factorization.

2011012102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485800688.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2011012102111 its reverse (1112012101102), we get a palindrome (3123024203213).

The spelling of 2011012102111 in words is "two trillion, eleven billion, twelve million, one hundred two thousand, one hundred eleven".