11112111112203 has 24 divisors (see below), whose sum is σ = 16071859118016. Its totient is φ = 7398368838000.

The previous prime is 11112111112199. The next prime is 11112111112211. The reversal of 11112111112203 is 30221111121111.

It is not a de Polignac number, because 11112111112203 - 2² = 11112111112199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11112111116203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79205308 + ... + 79345478.

It is an arithmetic number, because the mean of its divisors is an integer number (669660796584).

Almost surely, 2^{11112111112203} is an apocalyptic number.

11112111112203 is a deficient number, since it is larger than the sum of its proper divisors (4959748005813).

11112111112203 is a wasteful number, since it uses less digits than its factorization.

11112111112203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151655 (or 151652 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 18.

Adding to 11112111112203 its reverse (30221111121111), we get a palindrome (41333222233314).

The spelling of 11112111112203 in words is "eleven trillion, one hundred twelve billion, one hundred eleven million, one hundred twelve thousand, two hundred three".