21313322021111 has 8 divisors (see below), whose sum is σ = 22048539837120. Its totient is φ = 20578122583648.

The previous prime is 21313322021071. The next prime is 21313322021161. The reversal of 21313322021111 is 11112022331312.

It is a happy number.

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-21313322021111 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 (21313322021161) 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, 2214356 + ... + 6894201.

It is an arithmetic number, because the mean of its divisors is an integer number (2756067479640).

Almost surely, 2^{21313322021111} is an apocalyptic number.

21313322021111 is a deficient number, since it is larger than the sum of its proper divisors (735217816009).

21313322021111 is an equidigital number, since it uses as much as digits as its factorization.

21313322021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9189273.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 21313322021111 its reverse (11112022331312), we get a palindrome (32425344352423).

The spelling of 21313322021111 in words is "twenty-one trillion, three hundred thirteen billion, three hundred twenty-two million, twenty-one thousand, one hundred eleven".