21301241330 has 8 divisors (see below), whose sum is σ = 38342234412. Its totient is φ = 8520496528.

The previous prime is 21301241329. The next prime is 21301241333. The reversal of 21301241330 is 3314210312.

It can be written as a sum of positive squares in 2 ways, for example, as 20505380809 + 795860521 = 143197^2 + 28211^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21301241333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065062057 + ... + 1065062076.

Almost surely, 2^21301241330 is an apocalyptic number.

21301241330 is a deficient number, since it is larger than the sum of its proper divisors (17040993082).

21301241330 is a wasteful number, since it uses less digits than its factorization.

21301241330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130124140.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21301241330 its reverse (3314210312), we get a palindrome (24615451642).

The spelling of 21301241330 in words is "twenty-one billion, three hundred one million, two hundred forty-one thousand, three hundred thirty".