13111013111 has 16 divisors (see below), whose sum is σ = 15141979968. Its totient is φ = 11119680000.

The previous prime is 13111013107. The next prime is 13111013191. The reversal of 13111013111 is 11131011131.

It is a cyclic number.

It is not a de Polignac number, because 13111013111 - 2² = 13111013107 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 (13111013191) 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, 1319261 + ... + 1329161.

It is an arithmetic number, because the mean of its divisors is an integer number (946373748).

Almost surely, 2^13111013111 is an apocalyptic number.

13111013111 is a deficient number, since it is larger than the sum of its proper divisors (2030966857).

13111013111 is a wasteful number, since it uses less digits than its factorization.

13111013111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11882.

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

Adding to 13111013111 its reverse (11131011131), we get a palindrome (24242024242).

The spelling of 13111013111 in words is "thirteen billion, one hundred eleven million, thirteen thousand, one hundred eleven".