1100100001003 has 4 divisors (see below), whose sum is σ = 1105033185088. Its totient is φ = 1095166816920.

The previous prime is 1100100001001. The next prime is 1100100001019. The reversal of 1100100001003 is 3001000010011.

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 1100100001003 - 2¹ = 1100100001001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100100001001) 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 3 ways as a sum of consecutive naturals, for example, 2466591708 + ... + 2466592153.

It is an arithmetic number, because the mean of its divisors is an integer number (276258296272).

Almost surely, 2^{1100100001003} is an apocalyptic number.

1100100001003 is a deficient number, since it is larger than the sum of its proper divisors (4933184085).

1100100001003 is an equidigital number, since it uses as much as digits as its factorization.

1100100001003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4933184084.

The product of its (nonzero) digits is 3, while the sum is 7.

Adding to 1100100001003 its reverse (3001000010011), we get a palindrome (4101100011014).

The spelling of 1100100001003 in words is "one trillion, one hundred billion, one hundred million, one thousand, three".