1111111122003 has 16 divisors (see below), whose sum is σ = 1559591118720. Its totient is φ = 701692782336.

The previous prime is 1111111122001. The next prime is 1111111122019. The reversal of 1111111122003 is 3002211111111.

It is not a de Polignac number, because 1111111122003 - 2¹ = 1111111122001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111111122001) 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, 196350 + ... + 1503587.

It is an arithmetic number, because the mean of its divisors is an integer number (97474444920).

Almost surely, 2^{1111111122003} is an apocalyptic number.

1111111122003 is a deficient number, since it is larger than the sum of its proper divisors (448479996717).

1111111122003 is a wasteful number, since it uses less digits than its factorization.

1111111122003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711426.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 1111111122003 its reverse (3002211111111), we get a palindrome (4113322233114).

The spelling of 1111111122003 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred twenty-two thousand, three".