11143313 has 4 divisors (see below), whose sum is σ = 11798820. Its totient is φ = 10487808.

The previous prime is 11143309. The next prime is 11143333. The reversal of 11143313 is 31334111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31334111 = 17 ⋅1843183.

It can be written as a sum of positive squares in 2 ways, for example, as 8427409 + 2715904 = 2903^2 + 1648^2 .

It is a cyclic number.

It is not a de Polignac number, because 11143313 - 2² = 11143309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 655489 = 11143313 / (1 + 1 + 1 + 4 + 3 + 3 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11143291 and 11143300.

It is not an unprimeable number, because it can be changed into a prime (11143333) 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, 327728 + ... + 327761.

It is an arithmetic number, because the mean of its divisors is an integer number (2949705).

Almost surely, 2^11143313 is an apocalyptic number.

It is an amenable number.

11143313 is a deficient number, since it is larger than the sum of its proper divisors (655507).

11143313 is an equidigital number, since it uses as much as digits as its factorization.

11143313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655506.

The product of its digits is 108, while the sum is 17.

The square root of 11143313 is about 3338.1601219834. The cubic root of 11143313 is about 223.3596788306.

Adding to 11143313 its reverse (31334111), we get a palindrome (42477424).

The spelling of 11143313 in words is "eleven million, one hundred forty-three thousand, three hundred thirteen".