21310120212311 has 8 divisors (see below), whose sum is σ = 25194230793120. Its totient is φ = 17635961554848.

The previous prime is 21310120212307. The next prime is 21310120212317. The reversal of 21310120212311 is 11321202101312.

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

It is not a de Polignac number, because 21310120212311 - 2² = 21310120212307 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 (21310120212317) 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, 52487980616 + ... + 52487981021.

It is an arithmetic number, because the mean of its divisors is an integer number (3149278849140).

Almost surely, 2^{21310120212311} is an apocalyptic number.

21310120212311 is a deficient number, since it is larger than the sum of its proper divisors (3884110580809).

21310120212311 is a wasteful number, since it uses less digits than its factorization.

21310120212311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104975961673.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 21310120212311 its reverse (11321202101312), we get a palindrome (32631322313623).

The spelling of 21310120212311 in words is "twenty-one trillion, three hundred ten billion, one hundred twenty million, two hundred twelve thousand, three hundred eleven".