11444011021 has 8 divisors (see below), whose sum is σ = 11680133120. Its totient is φ = 11210170608.

The previous prime is 11444010983. The next prime is 11444011097. The reversal of 11444011021 is 12011044411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11444011021 - 2¹¹ = 11444008973 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 11444011021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11444011321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560286 + ... + 580351.

It is an arithmetic number, because the mean of its divisors is an integer number (1460016640).

Almost surely, 2^11444011021 is an apocalyptic number.

It is an amenable number.

11444011021 is a deficient number, since it is larger than the sum of its proper divisors (236122099).

11444011021 is a wasteful number, since it uses less digits than its factorization.

11444011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140843.

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

Adding to 11444011021 its reverse (12011044411), we get a palindrome (23455055432).

The spelling of 11444011021 in words is "eleven billion, four hundred forty-four million, eleven thousand, twenty-one".