11144440423 has 8 divisors (see below), whose sum is σ = 11801161728. Its totient is φ = 10487848704.

The previous prime is 11144440409. The next prime is 11144440451. The reversal of 11144440423 is 32404444111.

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 11144440423 - 2¹³ = 11144432231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11144440391 and 11144440400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11144441423) 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, 187290 + ... + 239512.

It is an arithmetic number, because the mean of its divisors is an integer number (1475145216).

Almost surely, 2^11144440423 is an apocalyptic number.

11144440423 is a deficient number, since it is larger than the sum of its proper divisors (656721305).

11144440423 is a wasteful number, since it uses less digits than its factorization.

11144440423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64793.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 11144440423 its reverse (32404444111), we get a palindrome (43548884534).

The spelling of 11144440423 in words is "eleven billion, one hundred forty-four million, four hundred forty thousand, four hundred twenty-three".