12204311 has 4 divisors (see below), whose sum is σ = 13947792. Its totient is φ = 10460832.

The previous prime is 12204281. The next prime is 12204323. The reversal of 12204311 is 11340221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11340221 = 907 ⋅12503.

It is a cyclic number.

It is not a de Polignac number, because 12204311 - 2¹⁸ = 11942167 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12204341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871730 + ... + 871743.

It is an arithmetic number, because the mean of its divisors is an integer number (3486948).

Almost surely, 2^12204311 is an apocalyptic number.

12204311 is a deficient number, since it is larger than the sum of its proper divisors (1743481).

12204311 is an equidigital number, since it uses as much as digits as its factorization.

12204311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743480.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12204311 is about 3493.4669026627. The cubic root of 12204311 is about 230.2348640571.

Adding to 12204311 its reverse (11340221), we get a palindrome (23544532).

The spelling of 12204311 in words is "twelve million, two hundred four thousand, three hundred eleven".