11111103003 has 32 divisors (see below), whose sum is σ = 19891210752. Its totient is φ = 5328000000.

The previous prime is 11111102993. The next prime is 11111103019. The reversal of 11111103003 is 30030111111.

It is not a de Polignac number, because 11111103003 - 2⁵ = 11111102971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11111103003.

It is not an unprimeable number, because it can be changed into a prime (11111103203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1846998 + ... + 1853003.

It is an arithmetic number, because the mean of its divisors is an integer number (621600336).

Almost surely, 2^11111103003 is an apocalyptic number.

11111103003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11111103003 is a deficient number, since it is larger than the sum of its proper divisors (8780107749).

11111103003 is a wasteful number, since it uses less digits than its factorization.

11111103003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700035.

The product of its (nonzero) digits is 9, while the sum is 12.

Adding to 11111103003 its reverse (30030111111), we get a palindrome (41141214114).

The spelling of 11111103003 in words is "eleven billion, one hundred eleven million, one hundred three thousand, three".