1103111111203 has 16 divisors (see below), whose sum is σ = 1213231219200. Its totient is φ = 998315366400.

The previous prime is 1103111111129. The next prime is 1103111111233. The reversal of 1103111111203 is 3021111113011.

It is a cyclic number.

It is not a de Polignac number, because 1103111111203 - 2³³ = 1094521176611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103111111233) 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, 1305223 + ... + 1977328.

It is an arithmetic number, because the mean of its divisors is an integer number (75826951200).

Almost surely, 2^{1103111111203} is an apocalyptic number.

1103111111203 is a deficient number, since it is larger than the sum of its proper divisors (110120107997).

1103111111203 is a wasteful number, since it uses less digits than its factorization.

1103111111203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283362.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 1103111111203 its reverse (3021111113011), we get a palindrome (4124222224214).

The spelling of 1103111111203 in words is "one trillion, one hundred three billion, one hundred eleven million, one hundred eleven thousand, two hundred three".