12052311 has 4 divisors (see below), whose sum is σ = 16069752. Its totient is φ = 8034872.

The previous prime is 12052307. The next prime is 12052331. The reversal of 12052311 is 11325021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11325021 = 3 ⋅3775007.

It is a cyclic number.

It is not a de Polignac number, because 12052311 - 2² = 12052307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12052331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2008716 + ... + 2008721.

It is an arithmetic number, because the mean of its divisors is an integer number (4017438).

Almost surely, 2^12052311 is an apocalyptic number.

12052311 is a deficient number, since it is larger than the sum of its proper divisors (4017441).

12052311 is an equidigital number, since it uses as much as digits as its factorization.

12052311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017440.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12052311 is about 3471.6438469405. The cubic root of 12052311 is about 229.2750393138.

Adding to 12052311 its reverse (11325021), we get a palindrome (23377332).

The spelling of 12052311 in words is "twelve million, fifty-two thousand, three hundred eleven".