21144233440141 has 8 divisors (see below), whose sum is σ = 24164881893824. Its totient is φ = 18123595905600.

The previous prime is 21144233440123. The next prime is 21144233440147. The reversal of 21144233440141 is 14104433244112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21144233440141 - 2¹¹ = 21144233438093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21144233440097 and 21144233440106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21144233440147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1955941 + ... + 6790741.

It is an arithmetic number, because the mean of its divisors is an integer number (3020610236728).

Almost surely, 2^{21144233440141} is an apocalyptic number.

It is an amenable number.

21144233440141 is a deficient number, since it is larger than the sum of its proper divisors (3020648453683).

21144233440141 is an equidigital number, since it uses as much as digits as its factorization.

21144233440141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459571.

The product of its (nonzero) digits is 36864, while the sum is 34.

Adding to 21144233440141 its reverse (14104433244112), we get a palindrome (35248666684253).

The spelling of 21144233440141 in words is "twenty-one trillion, one hundred forty-four billion, two hundred thirty-three million, four hundred forty thousand, one hundred forty-one".