1244002123013 has 16 divisors (see below), whose sum is σ = 1348936848000. Its totient is φ = 1140390592320.

The previous prime is 1244002122997. The next prime is 1244002123027. The reversal of 1244002123013 is 3103212004421.

It is a cyclic number.

It is not a de Polignac number, because 1244002123013 - 2⁴ = 1244002122997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1244002123013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244002123213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10865798 + ... + 10979688.

It is an arithmetic number, because the mean of its divisors is an integer number (84308553000).

Almost surely, 2^{1244002123013} is an apocalyptic number.

1244002123013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1244002123013 is a deficient number, since it is larger than the sum of its proper divisors (104934724987).

1244002123013 is a wasteful number, since it uses less digits than its factorization.

1244002123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119692.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1244002123013 its reverse (3103212004421), we get a palindrome (4347214127434).

The spelling of 1244002123013 in words is "one trillion, two hundred forty-four billion, two million, one hundred twenty-three thousand, thirteen".