21340324101 has 24 divisors (see below), whose sum is σ = 29254573440. Its totient is φ = 13837022976.

The previous prime is 21340324099. The next prime is 21340324123. The reversal of 21340324101 is 10142304312.

It is not a de Polignac number, because 21340324101 - 2¹ = 21340324099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21340324141) 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 23 ways as a sum of consecutive naturals, for example, 1317685 + ... + 1333781.

It is an arithmetic number, because the mean of its divisors is an integer number (1218940560).

Almost surely, 2^21340324101 is an apocalyptic number.

It is an amenable number.

21340324101 is a deficient number, since it is larger than the sum of its proper divisors (7914249339).

21340324101 is a wasteful number, since it uses less digits than its factorization.

21340324101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16425 (or 16382 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21340324101 its reverse (10142304312), we get a palindrome (31482628413).

The spelling of 21340324101 in words is "twenty-one billion, three hundred forty million, three hundred twenty-four thousand, one hundred one".