11444442001 has 4 divisors (see below), whose sum is σ = 11527978212. Its totient is φ = 11360905792.

The previous prime is 11444441963. The next prime is 11444442013. The reversal of 11444442001 is 10024444411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10024444411 = 1979 ⋅5065409.

It can be written as a sum of positive squares in 2 ways, for example, as 2480139601 + 8964302400 = 49801^2 + 94680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11444442001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11444442601) 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, 41767900 + ... + 41768173.

It is an arithmetic number, because the mean of its divisors is an integer number (2881994553).

Almost surely, 2^11444442001 is an apocalyptic number.

It is an amenable number.

11444442001 is a deficient number, since it is larger than the sum of its proper divisors (83536211).

11444442001 is an equidigital number, since it uses as much as digits as its factorization.

11444442001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83536210.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 11444442001 its reverse (10024444411), we get a palindrome (21468886412).

The spelling of 11444442001 in words is "eleven billion, four hundred forty-four million, four hundred forty-two thousand, one".