3111103 has 4 divisors (see below), whose sum is σ = 3142008. Its totient is φ = 3080200.

The previous prime is 3111083. The next prime is 3111107. The reversal of 3111103 is 3011113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3111103 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3111103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15301 + ... + 15502.

It is an arithmetic number, because the mean of its divisors is an integer number (785502).

Almost surely, 2^3111103 is an apocalyptic number.

3111103 is a deficient number, since it is larger than the sum of its proper divisors (30905).

3111103 is a wasteful number, since it uses less digits than its factorization.

3111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30904.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 3111103 is about 1763.8319080910. The cubic root of 3111103 is about 145.9838444625.

Adding to 3111103 its sum of digits (10), we get a palindrome (3111113).

Adding to 3111103 its reverse (3011113), we get a palindrome (6122216).

It can be divided in two parts, 311110 and 3, that added together give a palindrome (311113).

The spelling of 3111103 in words is "three million, one hundred eleven thousand, one hundred three".