21020324341 has 8 divisors (see below), whose sum is σ = 21395881568. Its totient is φ = 20645766000.

The previous prime is 21020324279. The next prime is 21020324387. The reversal of 21020324341 is 14342302012.

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 21020324341 - 2¹¹ = 21020322293 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 (21020324041) 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 7 ways as a sum of consecutive naturals, for example, 207195 + ... + 291496.

It is an arithmetic number, because the mean of its divisors is an integer number (2674485196).

Almost surely, 2^21020324341 is an apocalyptic number.

It is an amenable number.

21020324341 is a deficient number, since it is larger than the sum of its proper divisors (375557227).

21020324341 is an equidigital number, since it uses as much as digits as its factorization.

21020324341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499443.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21020324341 its reverse (14342302012), we get a palindrome (35362626353).

The spelling of 21020324341 in words is "twenty-one billion, twenty million, three hundred twenty-four thousand, three hundred forty-one".