11044203121 has 16 divisors (see below), whose sum is σ = 12712968576. Its totient is φ = 9398439936.

The previous prime is 11044203113. The next prime is 11044203179. The reversal of 11044203121 is 12130244011.

It is a cyclic number.

It is not a de Polignac number, because 11044203121 - 2³ = 11044203113 is a prime.

It is a super-2 number, since 2×11044203121² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11044203101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542295 + ... + 562291.

It is an arithmetic number, because the mean of its divisors is an integer number (794560536).

Almost surely, 2^11044203121 is an apocalyptic number.

It is an amenable number.

11044203121 is a deficient number, since it is larger than the sum of its proper divisors (1668765455).

11044203121 is a wasteful number, since it uses less digits than its factorization.

11044203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20568.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11044203121 its reverse (12130244011), we get a palindrome (23174447132).

The spelling of 11044203121 in words is "eleven billion, forty-four million, two hundred three thousand, one hundred twenty-one".