21130144241 has 8 divisors (see below), whose sum is σ = 21308030304. Its totient is φ = 20952509760.

The previous prime is 21130144213. The next prime is 21130144289. The reversal of 21130144241 is 14244103112.

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 21130144241 - 2³⁰ = 20056402417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21130144291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107726 + ... + 232088.

It is an arithmetic number, because the mean of its divisors is an integer number (2663503788).

Almost surely, 2^21130144241 is an apocalyptic number.

It is an amenable number.

21130144241 is a deficient number, since it is larger than the sum of its proper divisors (177886063).

21130144241 is a wasteful number, since it uses less digits than its factorization.

21130144241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125791.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21130144241 its reverse (14244103112), we get a palindrome (35374247353).

The spelling of 21130144241 in words is "twenty-one billion, one hundred thirty million, one hundred forty-four thousand, two hundred forty-one".