1244131013 has 2 divisors, whose sum is σ = 1244131014. Its totient is φ = 1244131012.

The previous prime is 1244131003. The next prime is 1244131027. The reversal of 1244131013 is 3101314421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1097066884 + 147064129 = 33122^2 + 12127^2 .

It is an emirp because it is prime and its reverse (3101314421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1244131013 - 2⁶ = 1244130949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1244131003) 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 as a sum of consecutive naturals, namely, 622065506 + 622065507.

It is an arithmetic number, because the mean of its divisors is an integer number (622065507).

Almost surely, 2^1244131013 is an apocalyptic number.

It is an amenable number.

1244131013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244131013 is an equidigital number, since it uses as much as digits as its factorization.

1244131013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1244131013 is about 35272.2413946151. The cubic root of 1244131013 is about 1075.5287863260.

Adding to 1244131013 its reverse (3101314421), we get a palindrome (4345445434).

The spelling of 1244131013 in words is "one billion, two hundred forty-four million, one hundred thirty-one thousand, thirteen".