11044144431 has 24 divisors (see below), whose sum is σ = 16033651920. Its totient is φ = 7325456256.

The previous prime is 11044144427. The next prime is 11044144471. The reversal of 11044144431 is 13444144011.

It is not a de Polignac number, because 11044144431 - 2² = 11044144427 is a prime.

It is a super-2 number, since 2×11044144431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11044144395 and 11044144404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11044144411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2072136 + ... + 2077458.

It is an arithmetic number, because the mean of its divisors is an integer number (668068830).

Almost surely, 2^11044144431 is an apocalyptic number.

11044144431 is a deficient number, since it is larger than the sum of its proper divisors (4989507489).

11044144431 is a wasteful number, since it uses less digits than its factorization.

11044144431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6455 (or 6452 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 11044144431 its reverse (13444144011), we get a palindrome (24488288442).

The spelling of 11044144431 in words is "eleven billion, forty-four million, one hundred forty-four thousand, four hundred thirty-one".