13111319 has 4 divisors (see below), whose sum is σ = 14119896. Its totient is φ = 12102744.

The previous prime is 13111309. The next prime is 13111327. The reversal of 13111319 is 91311131.

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

It is a cyclic number.

It is not a de Polignac number, because 13111319 - 2⁴ = 13111303 is a prime.

It is a super-2 number, since 2×13111319² = 343813371839522, which contains 22 as substring.

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 13111319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111309) 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, 504269 + ... + 504294.

It is an arithmetic number, because the mean of its divisors is an integer number (3529974).

Almost surely, 2^13111319 is an apocalyptic number.

13111319 is a deficient number, since it is larger than the sum of its proper divisors (1008577).

13111319 is a wasteful number, since it uses less digits than its factorization.

13111319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008576.

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

The square root of 13111319 is about 3620.9555368714. The cubic root of 13111319 is about 235.8027114476.

The spelling of 13111319 in words is "thirteen million, one hundred eleven thousand, three hundred nineteen".