1100112003 has 16 divisors (see below), whose sum is σ = 1656516000. Its totient is φ = 721383840.

The previous prime is 1100111993. The next prime is 1100112029. The reversal of 1100112003 is 3002110011.

It is a de Polignac number, because none of the positive numbers 2^k-1100112003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1100112803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332328 + ... + 335621.

It is an arithmetic number, because the mean of its divisors is an integer number (103532250).

Almost surely, 2^1100112003 is an apocalyptic number.

1100112003 is a deficient number, since it is larger than the sum of its proper divisors (556403997).

1100112003 is an equidigital number, since it uses as much as digits as its factorization.

1100112003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668019 (or 668013 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1100112003 is about 33167.9363693311. The cubic root of 1100112003 is about 1032.3151501672.

Adding to 1100112003 its reverse (3002110011), we get a palindrome (4102222014).

The spelling of 1100112003 in words is "one billion, one hundred million, one hundred twelve thousand, three".