2111103111 has 32 divisors (see below), whose sum is σ = 3167075520. Its totient is φ = 1241856000.

The previous prime is 2111103107. The next prime is 2111103119. The reversal of 2111103111 is 1113011112.

It is not a de Polignac number, because 2111103111 - 2² = 2111103107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111103119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104991 + ... + 123471.

It is an arithmetic number, because the mean of its divisors is an integer number (98971110).

Almost surely, 2^2111103111 is an apocalyptic number.

2111103111 is a deficient number, since it is larger than the sum of its proper divisors (1055972409).

2111103111 is a wasteful number, since it uses less digits than its factorization.

2111103111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18627.

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 2111103111 is about 45946.7421151925. The cubic root of 2111103111 is about 1282.8320899795.

Adding to 2111103111 its reverse (1113011112), we get a palindrome (3224114223).

The spelling of 2111103111 in words is "two billion, one hundred eleven million, one hundred three thousand, one hundred eleven".