11444010121 has 4 divisors (see below), whose sum is σ = 11444332612. Its totient is φ = 11443687632.

The previous prime is 11444010091. The next prime is 11444010143. The reversal of 11444010121 is 12101044411.

11444010121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10725502096 + 718508025 = 103564^2 + 26805^2 .

It is a cyclic number.

It is not a de Polignac number, because 11444010121 - 2⁵ = 11444010089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11444010161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100350 + ... + 181543.

It is an arithmetic number, because the mean of its divisors is an integer number (2861083153).

Almost surely, 2^11444010121 is an apocalyptic number.

It is an amenable number.

11444010121 is a deficient number, since it is larger than the sum of its proper divisors (322491).

11444010121 is an equidigital number, since it uses as much as digits as its factorization.

11444010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322490.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11444010121 its reverse (12101044411), we get a palindrome (23545054532).

The spelling of 11444010121 in words is "eleven billion, four hundred forty-four million, ten thousand, one hundred twenty-one".