12711233 has 4 divisors (see below), whose sum is σ = 12730068. Its totient is φ = 12692400.

The previous prime is 12711227. The next prime is 12711263. The reversal of 12711233 is 33211721.

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 8334769 + 4376464 = 2887^2 + 2092^2 .

It is a cyclic number.

It is not a de Polignac number, because 12711233 - 2⁴ = 12711217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12711263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8366 + ... + 9767.

It is an arithmetic number, because the mean of its divisors is an integer number (3182517).

Almost surely, 2^12711233 is an apocalyptic number.

It is an amenable number.

12711233 is a deficient number, since it is larger than the sum of its proper divisors (18835).

12711233 is an equidigital number, since it uses as much as digits as its factorization.

12711233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18834.

The product of its digits is 252, while the sum is 20.

The square root of 12711233 is about 3565.2816158054. The cubic root of 12711233 is about 233.3794219616.

Adding to 12711233 its reverse (33211721), we get a palindrome (45922954).

The spelling of 12711233 in words is "twelve million, seven hundred eleven thousand, two hundred thirty-three".