11421244128 has 96 divisors (see below), whose sum is σ = 36067127040. Its totient is φ = 3091461120.

The previous prime is 11421244123. The next prime is 11421244151. The reversal of 11421244128 is 82144212411.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a junction number, because it is equal to n+sod(n) for n = 11421244095 and 11421244104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421244123) 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, 434493 + ... + 460028.

It is an arithmetic number, because the mean of its divisors is an integer number (375699240).

Almost surely, 2^11421244128 is an apocalyptic number.

It is an amenable number.

11421244128 is an abundant number, since it is smaller than the sum of its proper divisors (24645882912).

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

11421244128 is a wasteful number, since it uses less digits than its factorization.

11421244128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894560 (or 894552 counting only the distinct ones).

The product of its digits is 4096, while the sum is 30.

Adding to 11421244128 its reverse (82144212411), we get a palindrome (93565456539).

The spelling of 11421244128 in words is "eleven billion, four hundred twenty-one million, two hundred forty-four thousand, one hundred twenty-eight".