1244433013 has 2 divisors, whose sum is σ = 1244433014. Its totient is φ = 1244433012.

The previous prime is 1244433011. The next prime is 1244433037. The reversal of 1244433013 is 3103344421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1243126564 + 1306449 = 35258^2 + 1143^2 .

It is an emirp because it is prime and its reverse (3103344421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1244433013 - 2¹ = 1244433011 is a prime.

It is a super-2 number, since 2×1244433013² = 3097227047688516338, which contains 22 as substring.

Together with 1244433011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1244433011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622216506 + 622216507.

It is an arithmetic number, because the mean of its divisors is an integer number (622216507).

Almost surely, 2^1244433013 is an apocalyptic number.

It is an amenable number.

1244433013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244433013 is an equidigital number, since it uses as much as digits as its factorization.

1244433013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1244433013 is about 35276.5221216605. The cubic root of 1244433013 is about 1075.6158038003.

Adding to 1244433013 its reverse (3103344421), we get a palindrome (4347777434).

The spelling of 1244433013 in words is "one billion, two hundred forty-four million, four hundred thirty-three thousand, thirteen".