21342032102401 has 4 divisors (see below), whose sum is σ = 21342078217152. Its totient is φ = 21341985987652.

The previous prime is 21342032102387. The next prime is 21342032102429. The reversal of 21342032102401 is 10420123024312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21342032102401 - 2⁷ = 21342032102273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21342032102491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22356061 + ... + 23291146.

It is an arithmetic number, because the mean of its divisors is an integer number (5335519554288).

Almost surely, 2^{21342032102401} is an apocalyptic number.

It is an amenable number.

21342032102401 is a deficient number, since it is larger than the sum of its proper divisors (46114751).

21342032102401 is an equidigital number, since it uses as much as digits as its factorization.

21342032102401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46114750.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21342032102401 its reverse (10420123024312), we get a palindrome (31762155126713).

The spelling of 21342032102401 in words is "twenty-one trillion, three hundred forty-two billion, thirty-two million, one hundred two thousand, four hundred one".