11432144434221 has 64 divisors (see below), whose sum is σ = 19623191370240. Its totient is φ = 6442499358720.

The previous prime is 11432144434211. The next prime is 11432144434223. The reversal of 11432144434221 is 12243444123411.

11432144434221 is a `hidden beast` number, since 1 + 1 + 4 + 3 + 214 + 4 + 434 + 2 + 2 + 1 = 666.

It is not a de Polignac number, because 11432144434221 - 2¹⁷ = 11432144303149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11432144434223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 153288781 + ... + 153363341.

It is an arithmetic number, because the mean of its divisors is an integer number (306612365160).

Almost surely, 2^{11432144434221} is an apocalyptic number.

It is an amenable number.

11432144434221 is a deficient number, since it is larger than the sum of its proper divisors (8191046936019).

11432144434221 is a wasteful number, since it uses less digits than its factorization.

11432144434221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85763 (or 85757 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

Adding to 11432144434221 its reverse (12243444123411), we get a palindrome (23675588557632).

The spelling of 11432144434221 in words is "eleven trillion, four hundred thirty-two billion, one hundred forty-four million, four hundred thirty-four thousand, two hundred twenty-one".