11444421120 has 160 divisors (see below), whose sum is σ = 39912713280. Its totient is φ = 2774384640.

The previous prime is 11444421113. The next prime is 11444421137. The reversal of 11444421120 is 2112444411.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16746 + ... + 152214.

It is an arithmetic number, because the mean of its divisors is an integer number (249454458).

Almost surely, 2^11444421120 is an apocalyptic number.

11444421120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11444421120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19956356640).

11444421120 is an abundant number, since it is smaller than the sum of its proper divisors (28468292160).

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

11444421120 is a wasteful number, since it uses less digits than its factorization.

11444421120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135506 (or 135490 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 11444421120 its reverse (2112444411), we get a palindrome (13556865531).

The spelling of 11444421120 in words is "eleven billion, four hundred forty-four million, four hundred twenty-one thousand, one hundred twenty".