13311311 has 4 divisors (see below), whose sum is σ = 14335272. Its totient is φ = 12287352.

The previous prime is 13311301. The next prime is 13311313. The reversal of 13311311 is 11311331.

It is a happy number.

13311311 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 an emirpimes, since its reverse is a distinct semiprime: 11311331 = 23 ⋅491797.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13311311 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 (13311313) 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, 511961 + ... + 511986.

It is an arithmetic number, because the mean of its divisors is an integer number (3583818).

Almost surely, 2^13311311 is an apocalyptic number.

13311311 is a deficient number, since it is larger than the sum of its proper divisors (1023961).

13311311 is a wasteful number, since it uses less digits than its factorization.

13311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023960.

The product of its digits is 27, while the sum is 14.

The square root of 13311311 is about 3648.4669383181. The cubic root of 13311311 is about 236.9955965403.

Adding to 13311311 its reverse (11311331), we get a palindrome (24622642).

The spelling of 13311311 in words is "thirteen million, three hundred eleven thousand, three hundred eleven".