11421444144 has 80 divisors (see below), whose sum is σ = 33587207424. Its totient is φ = 3310560000.

The previous prime is 11421444113. The next prime is 11421444193. The reversal of 11421444144 is 44144412411.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458107 + ... + 482394.

Almost surely, 2^11421444144 is an apocalyptic number.

It is an amenable number.

11421444144 is an abundant number, since it is smaller than the sum of its proper divisors (22165763280).

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

11421444144 is a wasteful number, since it uses less digits than its factorization.

11421444144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940546 (or 940540 counting only the distinct ones).

The product of its digits is 8192, while the sum is 30.

Adding to 11421444144 its reverse (44144412411), we get a palindrome (55565856555).

The spelling of 11421444144 in words is "eleven billion, four hundred twenty-one million, four hundred forty-four thousand, one hundred forty-four".