13311233 has 4 divisors (see below), whose sum is σ = 14335188. Its totient is φ = 12287280.

The previous prime is 13311223. The next prime is 13311239. The reversal of 13311233 is 33211331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 552049 + 12759184 = 743^2 + 3572^2 .

It is a cyclic number.

It is not a de Polignac number, because 13311233 - 2⁴ = 13311217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13311239) 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, 511958 + ... + 511983.

It is an arithmetic number, because the mean of its divisors is an integer number (3583797).

Almost surely, 2^13311233 is an apocalyptic number.

13311233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13311233 is a deficient number, since it is larger than the sum of its proper divisors (1023955).

13311233 is a wasteful number, since it uses less digits than its factorization.

13311233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023954.

The product of its digits is 162, while the sum is 17.

The square root of 13311233 is about 3648.4562488812. The cubic root of 13311233 is about 236.9951336334.

Adding to 13311233 its reverse (33211331), we get a palindrome (46522564).

The spelling of 13311233 in words is "thirteen million, three hundred eleven thousand, two hundred thirty-three".