21133304341 has 16 divisors (see below), whose sum is σ = 21620589120. Its totient is φ = 20650654080.

The previous prime is 21133304329. The next prime is 21133304359. The reversal of 21133304341 is 14340333112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21133304341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133304441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12137731 + ... + 12139471.

It is an arithmetic number, because the mean of its divisors is an integer number (1351286820).

Almost surely, 2^21133304341 is an apocalyptic number.

It is an amenable number.

21133304341 is a deficient number, since it is larger than the sum of its proper divisors (487284779).

21133304341 is a wasteful number, since it uses less digits than its factorization.

21133304341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21133304341 its reverse (14340333112), we get a palindrome (35473637453).

The spelling of 21133304341 in words is "twenty-one billion, one hundred thirty-three million, three hundred four thousand, three hundred forty-one".