12244140305 has 4 divisors (see below), whose sum is σ = 14692968372. Its totient is φ = 9795312240.

The previous prime is 12244140301. The next prime is 12244140313. The reversal of 12244140305 is 50304144221.

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 9093338881 + 3150801424 = 95359^2 + 56132^2 .

It is not a de Polignac number, because 12244140305 - 2² = 12244140301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12244140301) 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, 1224414026 + ... + 1224414035.

It is an arithmetic number, because the mean of its divisors is an integer number (3673242093).

Almost surely, 2^12244140305 is an apocalyptic number.

It is an amenable number.

12244140305 is a deficient number, since it is larger than the sum of its proper divisors (2448828067).

12244140305 is an equidigital number, since it uses as much as digits as its factorization.

12244140305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448828066.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 12244140305 its reverse (50304144221), we get a palindrome (62548284526).

The spelling of 12244140305 in words is "twelve billion, two hundred forty-four million, one hundred forty thousand, three hundred five".