12240040313 has 2 divisors, whose sum is σ = 12240040314. Its totient is φ = 12240040312.

The previous prime is 12240040297. The next prime is 12240040357. The reversal of 12240040313 is 31304004221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10648588864 + 1591451449 = 103192^2 + 39893^2 .

It is a cyclic number.

It is not a de Polignac number, because 12240040313 - 2⁴ = 12240040297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12240040363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120020156 + 6120020157.

It is an arithmetic number, because the mean of its divisors is an integer number (6120020157).

Almost surely, 2^12240040313 is an apocalyptic number.

It is an amenable number.

12240040313 is a deficient number, since it is larger than the sum of its proper divisors (1).

12240040313 is an equidigital number, since it uses as much as digits as its factorization.

12240040313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12240040313 its reverse (31304004221), we get a palindrome (43544044534).

The spelling of 12240040313 in words is "twelve billion, two hundred forty million, forty thousand, three hundred thirteen".