21313312220011 has 8 divisors (see below), whose sum is σ = 24651541845504. Its totient is φ = 18048450278760.

The previous prime is 21313312220009. The next prime is 21313312220099. The reversal of 21313312220011 is 11002221331312.

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 21313312220011 - 2¹ = 21313312220009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21313312220111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18341920435 + ... + 18341921596.

It is an arithmetic number, because the mean of its divisors is an integer number (3081442730688).

Almost surely, 2^{21313312220011} is an apocalyptic number.

21313312220011 is a deficient number, since it is larger than the sum of its proper divisors (3338229625493).

21313312220011 is an equidigital number, since it uses as much as digits as its factorization.

21313312220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36683842121.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21313312220011 its reverse (11002221331312), we get a palindrome (32315533551323).

The spelling of 21313312220011 in words is "twenty-one trillion, three hundred thirteen billion, three hundred twelve million, two hundred twenty thousand, eleven".