21340242004201 has 8 divisors (see below), whose sum is σ = 21348103366080. Its totient is φ = 21332381536368.

The previous prime is 21340242004139. The next prime is 21340242004241. The reversal of 21340242004201 is 10240024204312.

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 21340242004201 - 2⁷ = 21340242004073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21340242004241) 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, 49552140 + ... + 49980946.

It is an arithmetic number, because the mean of its divisors is an integer number (2668512920760).

Almost surely, 2^{21340242004201} is an apocalyptic number.

It is an amenable number.

21340242004201 is a deficient number, since it is larger than the sum of its proper divisors (7861361879).

21340242004201 is a wasteful number, since it uses less digits than its factorization.

21340242004201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447023.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 21340242004201 its reverse (10240024204312), we get a palindrome (31580266208513).

The spelling of 21340242004201 in words is "twenty-one trillion, three hundred forty billion, two hundred forty-two million, four thousand, two hundred one".