1110123211111 has 4 divisors (see below), whose sum is σ = 1110270900312. Its totient is φ = 1109975521912.

The previous prime is 1110123211051. The next prime is 1110123211129. The reversal of 1110123211111 is 1111123210111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1110123211111 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 (1110123211181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73833325 + ... + 73848358.

It is an arithmetic number, because the mean of its divisors is an integer number (277567725078).

Almost surely, 2^{1110123211111} is an apocalyptic number.

1110123211111 is a deficient number, since it is larger than the sum of its proper divisors (147689201).

1110123211111 is an equidigital number, since it uses as much as digits as its factorization.

1110123211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147689200.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 1110123211111 its reverse (1111123210111), we get a palindrome (2221246421222).

The spelling of 1110123211111 in words is "one trillion, one hundred ten billion, one hundred twenty-three million, two hundred eleven thousand, one hundred eleven".