21430020341 has 8 divisors (see below), whose sum is σ = 21480016800. Its totient is φ = 21380078160.

The previous prime is 21430020239. The next prime is 21430020373. The reversal of 21430020341 is 14302003412.

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 21430020341 - 2¹⁸ = 21429758197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21430020841) 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, 838175 + ... + 863363.

It is an arithmetic number, because the mean of its divisors is an integer number (2685002100).

Almost surely, 2^21430020341 is an apocalyptic number.

It is an amenable number.

21430020341 is a deficient number, since it is larger than the sum of its proper divisors (49996459).

21430020341 is a wasteful number, since it uses less digits than its factorization.

21430020341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27139.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21430020341 its reverse (14302003412), we get a palindrome (35732023753).

The spelling of 21430020341 in words is "twenty-one billion, four hundred thirty million, twenty thousand, three hundred forty-one".