1444143321213 has 4 divisors (see below), whose sum is σ = 1925524428288. Its totient is φ = 962762214140.

The previous prime is 1444143321191. The next prime is 1444143321239. The reversal of 1444143321213 is 3121233414441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1444143321213 - 2⁶ = 1444143321149 is a prime.

It is a super-2 number, since 2×1444143321213² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444143321263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240690553533 + ... + 240690553538.

It is an arithmetic number, because the mean of its divisors is an integer number (481381107072).

Almost surely, 2^{1444143321213} is an apocalyptic number.

It is an amenable number.

1444143321213 is a deficient number, since it is larger than the sum of its proper divisors (481381107075).

1444143321213 is an equidigital number, since it uses as much as digits as its factorization.

1444143321213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481381107074.

The product of its digits is 27648, while the sum is 33.

Adding to 1444143321213 its reverse (3121233414441), we get a palindrome (4565376735654).

The spelling of 1444143321213 in words is "one trillion, four hundred forty-four billion, one hundred forty-three million, three hundred twenty-one thousand, two hundred thirteen".