111103311203 has 4 divisors (see below), whose sum is σ = 111667287600. Its totient is φ = 110539334808.

The previous prime is 111103311173. The next prime is 111103311251. The reversal of 111103311203 is 302113301111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302113301111 = 268993 ⋅1123127.

It is a cyclic number.

It is not a de Polignac number, because 111103311203 - 2¹⁶ = 111103245667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111103313203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281987903 + ... + 281988296.

It is an arithmetic number, because the mean of its divisors is an integer number (27916821900).

Almost surely, 2^111103311203 is an apocalyptic number.

111103311203 is a deficient number, since it is larger than the sum of its proper divisors (563976397).

111103311203 is an equidigital number, since it uses as much as digits as its factorization.

111103311203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563976396.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 111103311203 its reverse (302113301111), we get a palindrome (413216612314).

The spelling of 111103311203 in words is "one hundred eleven billion, one hundred three million, three hundred eleven thousand, two hundred three".