12311249 has 4 divisors (see below), whose sum is σ = 12405360. Its totient is φ = 12217140.

The previous prime is 12311219. The next prime is 12311251. The reversal of 12311249 is 94211321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12311249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311209) 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, 46859 + ... + 47120.

It is an arithmetic number, because the mean of its divisors is an integer number (3101340).

Almost surely, 2^12311249 is an apocalyptic number.

It is an amenable number.

12311249 is a deficient number, since it is larger than the sum of its proper divisors (94111).

12311249 is an equidigital number, since it uses as much as digits as its factorization.

12311249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94110.

The product of its digits is 432, while the sum is 23.

The square root of 12311249 is about 3508.7389472573. The cubic root of 12311249 is about 230.9053728098.

The spelling of 12311249 in words is "twelve million, three hundred eleven thousand, two hundred forty-nine".