21310322311 has 8 divisors (see below), whose sum is σ = 21771956160. Its totient is φ = 20849031168.

The previous prime is 21310322303. The next prime is 21310322317. The reversal of 21310322311 is 11322301312.

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 21310322311 - 2³ = 21310322303 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 (21310322317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42075 + ... + 210691.

It is an arithmetic number, because the mean of its divisors is an integer number (2721494520).

Almost surely, 2^21310322311 is an apocalyptic number.

21310322311 is a deficient number, since it is larger than the sum of its proper divisors (461633849).

21310322311 is a wasteful number, since it uses less digits than its factorization.

21310322311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171353.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21310322311 its reverse (11322301312), we get a palindrome (32632623623).

The spelling of 21310322311 in words is "twenty-one billion, three hundred ten million, three hundred twenty-two thousand, three hundred eleven".