1244111013 has 12 divisors (see below), whose sum is σ = 1891631040. Its totient is φ = 785754216.

The previous prime is 1244110969. The next prime is 1244111047. The reversal of 1244111013 is 3101114421.

It is not a de Polignac number, because 1244111013 - 2¹⁷ = 1243979941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244111413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3637581 + ... + 3637922.

It is an arithmetic number, because the mean of its divisors is an integer number (157635920).

Almost surely, 2^1244111013 is an apocalyptic number.

It is an amenable number.

1244111013 is a deficient number, since it is larger than the sum of its proper divisors (647520027).

1244111013 is a wasteful number, since it uses less digits than its factorization.

1244111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7275528 (or 7275525 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1244111013 is about 35271.9578844158. The cubic root of 1244111013 is about 1075.5230230822.

Adding to 1244111013 its reverse (3101114421), we get a palindrome (4345225434).

The spelling of 1244111013 in words is "one billion, two hundred forty-four million, one hundred eleven thousand, thirteen".