1111112003 has 8 divisors (see below), whose sum is σ = 1149920400. Its totient is φ = 1072336608.

The previous prime is 1111111999. The next prime is 1111112021. The reversal of 1111112003 is 3002111111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111112003 - 2² = 1111111999 is a prime.

It is a super-3 number, since 3×1111112003³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111112063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74453 + ... + 88121.

It is an arithmetic number, because the mean of its divisors is an integer number (143740050).

Almost surely, 2^1111112003 is an apocalyptic number.

1111112003 is a deficient number, since it is larger than the sum of its proper divisors (38808397).

1111112003 is a wasteful number, since it uses less digits than its factorization.

1111112003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16501.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1111112003 is about 33333.3467116640. The cubic root of 1111112003 is about 1035.7444457818.

Adding to 1111112003 its reverse (3002111111), we get a palindrome (4113223114).

The spelling of 1111112003 in words is "one billion, one hundred eleven million, one hundred twelve thousand, three".