11311369 has 4 divisors (see below), whose sum is σ = 11318596. Its totient is φ = 11304144.

The previous prime is 11311361. The next prime is 11311387. The reversal of 11311369 is 96311311.

It is a happy number.

11311369 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3404025 + 7907344 = 1845^2 + 2812^2 .

It is a cyclic number.

It is not a de Polignac number, because 11311369 - 2³ = 11311361 is a prime.

It is a super-2 number, since 2×11311369² = 255894137308322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311361) 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, 174 + ... + 4759.

It is an arithmetic number, because the mean of its divisors is an integer number (2829649).

Almost surely, 2^11311369 is an apocalyptic number.

It is an amenable number.

11311369 is a deficient number, since it is larger than the sum of its proper divisors (7227).

11311369 is an equidigital number, since it uses as much as digits as its factorization.

11311369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7226.

The product of its digits is 486, while the sum is 25.

The square root of 11311369 is about 3363.2378744299. The cubic root of 11311369 is about 224.4769347487.

It can be divided in two parts, 1131 and 1369, that added together give a square (2500 = 50²).

The spelling of 11311369 in words is "eleven million, three hundred eleven thousand, three hundred sixty-nine".