21304302441 has 8 divisors (see below), whose sum is σ = 28406456544. Its totient is φ = 14202508320.

The previous prime is 21304302419. The next prime is 21304302473. The reversal of 21304302441 is 14420340312.

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

It is not a de Polignac number, because 21304302441 - 2¹⁵ = 21304269673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21304302401) 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, 114445 + ... + 236021.

It is an arithmetic number, because the mean of its divisors is an integer number (3550807068).

Almost surely, 2^21304302441 is an apocalyptic number.

It is an amenable number.

21304302441 is a deficient number, since it is larger than the sum of its proper divisors (7102154103).

21304302441 is a wasteful number, since it uses less digits than its factorization.

21304302441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179991.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 21304302441 its reverse (14420340312), we get a palindrome (35724642753).

The spelling of 21304302441 in words is "twenty-one billion, three hundred four million, three hundred two thousand, four hundred forty-one".