11220424423 has 16 divisors (see below), whose sum is σ = 12548954880. Its totient is φ = 9961168896.

The previous prime is 11220424417. The next prime is 11220424441. The reversal of 11220424423 is 32442402211.

It is a cyclic number.

It is not a de Polignac number, because 11220424423 - 2¹³ = 11220416231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220424123) 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, 38986 + ... + 154792.

It is an arithmetic number, because the mean of its divisors is an integer number (784309680).

Almost surely, 2^11220424423 is an apocalyptic number.

11220424423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11220424423 is a deficient number, since it is larger than the sum of its proper divisors (1328530457).

11220424423 is a wasteful number, since it uses less digits than its factorization.

11220424423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116106.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 11220424423 its reverse (32442402211), we get a palindrome (43662826634).

The spelling of 11220424423 in words is "eleven billion, two hundred twenty million, four hundred twenty-four thousand, four hundred twenty-three".