1311141103 has 4 divisors (see below), whose sum is σ = 1316866840. Its totient is φ = 1305415368.

The previous prime is 1311141071. The next prime is 1311141107. The reversal of 1311141103 is 3011411131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3011411131 = 43 ⋅70032817.

It is a cyclic number.

It is not a de Polignac number, because 1311141103 - 2⁵ = 1311141071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311141107) 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, 2862525 + ... + 2862982.

It is an arithmetic number, because the mean of its divisors is an integer number (329216710).

Almost surely, 2^1311141103 is an apocalyptic number.

1311141103 is a deficient number, since it is larger than the sum of its proper divisors (5725737).

1311141103 is an equidigital number, since it uses as much as digits as its factorization.

1311141103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725736.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1311141103 is about 36209.6824482071. The cubic root of 1311141103 is about 1094.5017931941.

Adding to 1311141103 its reverse (3011411131), we get a palindrome (4322552234).

The spelling of 1311141103 in words is "one billion, three hundred eleven million, one hundred forty-one thousand, one hundred three".