13111139 has 2 divisors, whose sum is σ = 13111140. Its totient is φ = 13111138.

The previous prime is 13111129. The next prime is 13111177. The reversal of 13111139 is 93111131.

It is a weak prime.

It is an emirp because it is prime and its reverse (93111131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13111139 - 2¹⁶ = 13045603 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13111139.

It is not a weakly prime, because it can be changed into another prime (13111129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555569 + 6555570.

It is an arithmetic number, because the mean of its divisors is an integer number (6555570).

Almost surely, 2^13111139 is an apocalyptic number.

13111139 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111139 is an equidigital number, since it uses as much as digits as its factorization.

13111139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81, while the sum is 20.

The square root of 13111139 is about 3620.9306814685. The cubic root of 13111139 is about 235.8016323626.

The spelling of 13111139 in words is "thirteen million, one hundred eleven thousand, one hundred thirty-nine".