11444143013 has 4 divisors (see below), whose sum is σ = 11444788908. Its totient is φ = 11443497120.

The previous prime is 11444143001. The next prime is 11444143019. The reversal of 11444143013 is 31034144411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7932039844 + 3512103169 = 89062^2 + 59263^2 .

It is a cyclic number.

It is not a de Polignac number, because 11444143013 - 2²⁰ = 11443094437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11444143019) 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, 295598 + ... + 332063.

It is an arithmetic number, because the mean of its divisors is an integer number (2861197227).

Almost surely, 2^11444143013 is an apocalyptic number.

It is an amenable number.

11444143013 is a deficient number, since it is larger than the sum of its proper divisors (645895).

11444143013 is an equidigital number, since it uses as much as digits as its factorization.

11444143013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645894.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 11444143013 its reverse (31034144411), we get a palindrome (42478287424).

The spelling of 11444143013 in words is "eleven billion, four hundred forty-four million, one hundred forty-three thousand, thirteen".