13103111111 has 8 divisors (see below), whose sum is σ = 13346024400. Its totient is φ = 12860892160.

The previous prime is 13103111071. The next prime is 13103111123. The reversal of 13103111111 is 11111130131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13103111111 is a prime.

It is a Duffinian number.

13103111111 is a modest number, since divided by 111111 gives 13103 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103111191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135416 + ... + 211053.

It is an arithmetic number, because the mean of its divisors is an integer number (1668253050).

Almost surely, 2^13103111111 is an apocalyptic number.

13103111111 is a deficient number, since it is larger than the sum of its proper divisors (242913289).

13103111111 is an equidigital number, since it uses as much as digits as its factorization.

13103111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347169.

The product of its (nonzero) digits is 9, while the sum is 14.

Adding to 13103111111 its reverse (11111130131), we get a palindrome (24214241242).

The spelling of 13103111111 in words is "thirteen billion, one hundred three million, one hundred eleven thousand, one hundred eleven".