1111100111003 has 4 divisors (see below), whose sum is σ = 1176458941080. Its totient is φ = 1045741280928.

The previous prime is 1111100110951. The next prime is 1111100111039. The reversal of 1111100111003 is 3001110011111.

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-1111100111003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111100111053) 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 3 ways as a sum of consecutive naturals, for example, 32679415013 + ... + 32679415046.

It is an arithmetic number, because the mean of its divisors is an integer number (294114735270).

Almost surely, 2^{1111100111003} is an apocalyptic number.

1111100111003 is a deficient number, since it is larger than the sum of its proper divisors (65358830077).

1111100111003 is an equidigital number, since it uses as much as digits as its factorization.

1111100111003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65358830076.

The product of its (nonzero) digits is 3, while the sum is 11.

Adding to 1111100111003 its reverse (3001110011111), we get a palindrome (4112210122114).

The spelling of 1111100111003 in words is "one trillion, one hundred eleven billion, one hundred million, one hundred eleven thousand, three".