11434421223 has 48 divisors (see below), whose sum is σ = 17316842400. Its totient is φ = 7261228800.

The previous prime is 11434421209. The next prime is 11434421263. The reversal of 11434421223 is 32212443411.

11434421223 is a `hidden beast` number, since 1 + 1 + 434 + 4 + 2 + 1 + 223 = 666.

It is not a de Polignac number, because 11434421223 - 2⁸ = 11434420967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11434421203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7879648 + ... + 7881098.

It is an arithmetic number, because the mean of its divisors is an integer number (360767550).

Almost surely, 2^11434421223 is an apocalyptic number.

11434421223 is a deficient number, since it is larger than the sum of its proper divisors (5882421177).

11434421223 is a wasteful number, since it uses less digits than its factorization.

11434421223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872 (or 1869 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 11434421223 its reverse (32212443411), we get a palindrome (43646864634).

The spelling of 11434421223 in words is "eleven billion, four hundred thirty-four million, four hundred twenty-one thousand, two hundred twenty-three".