21300311241 has 48 divisors (see below), whose sum is σ = 33845760000. Its totient is φ = 12801265920.

The previous prime is 21300311237. The next prime is 21300311299. The reversal of 21300311241 is 14211300312.

It is not a de Polignac number, because 21300311241 - 2² = 21300311237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21300316241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16653240 + ... + 16654518.

It is an arithmetic number, because the mean of its divisors is an integer number (705120000).

Almost surely, 2^21300311241 is an apocalyptic number.

It is an amenable number.

21300311241 is a deficient number, since it is larger than the sum of its proper divisors (12545448759).

21300311241 is a wasteful number, since it uses less digits than its factorization.

21300311241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574 (or 2571 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21300311241 its reverse (14211300312), we get a palindrome (35511611553).

The spelling of 21300311241 in words is "twenty-one billion, three hundred million, three hundred eleven thousand, two hundred forty-one".