11223344420 has 24 divisors (see below), whose sum is σ = 23636571000. Its totient is φ = 4476471552.

The previous prime is 11223344399. The next prime is 11223344423. The reversal of 11223344420 is 2444332211.

11223344420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3381887716 + 7841456704 = 58154^2 + 88552^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11223344420.

It is not an unprimeable number, because it can be changed into a prime (11223344423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796985 + ... + 810944.

It is an arithmetic number, because the mean of its divisors is an integer number (984857125).

Almost surely, 2^11223344420 is an apocalyptic number.

11223344420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11223344420 is an abundant number, since it is smaller than the sum of its proper divisors (12413226580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11223344420 is a wasteful number, since it uses less digits than its factorization.

11223344420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608287 (or 1608285 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 11223344420 its reverse (2444332211), we get a palindrome (13667676631).

The spelling of 11223344420 in words is "eleven billion, two hundred twenty-three million, three hundred forty-four thousand, four hundred twenty".