21313220311301 has 8 divisors (see below), whose sum is σ = 21317063997024. Its totient is φ = 21309376944240.

The previous prime is 21313220311247. The next prime is 21313220311333. The reversal of 21313220311301 is 10311302231312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21313220311301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21313220311391) 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, 162267611 + ... + 162398903.

It is an arithmetic number, because the mean of its divisors is an integer number (2664632999628).

Almost surely, 2^{21313220311301} is an apocalyptic number.

It is an amenable number.

21313220311301 is a deficient number, since it is larger than the sum of its proper divisors (3843685723).

21313220311301 is a wasteful number, since it uses less digits than its factorization.

21313220311301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159331.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 21313220311301 its reverse (10311302231312), we get a palindrome (31624522542613).

The spelling of 21313220311301 in words is "twenty-one trillion, three hundred thirteen billion, two hundred twenty million, three hundred eleven thousand, three hundred one".