21313303232201 has 4 divisors (see below), whose sum is σ = 21357067715712. Its totient is φ = 21269538748692.

The previous prime is 21313303232153. The next prime is 21313303232213. The reversal of 21313303232201 is 10223230331312.

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 a de Polignac number, because none of the positive numbers 2^k-21313303232201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21313303232261) 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, 21882241025 + ... + 21882241998.

It is an arithmetic number, because the mean of its divisors is an integer number (5339266928928).

Almost surely, 2^{21313303232201} is an apocalyptic number.

It is an amenable number.

21313303232201 is a deficient number, since it is larger than the sum of its proper divisors (43764483511).

21313303232201 is an equidigital number, since it uses as much as digits as its factorization.

21313303232201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43764483510.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 21313303232201 its reverse (10223230331312), we get a palindrome (31536533563513).

The spelling of 21313303232201 in words is "twenty-one trillion, three hundred thirteen billion, three hundred three million, two hundred thirty-two thousand, two hundred one".