211333312321321 has 16 divisors (see below), whose sum is σ = 215371537920000. Its totient is φ = 207310327679376.

The previous prime is 211333312321301. The next prime is 211333312321337. The reversal of 211333312321321 is 123123213333112.

It is a cyclic number.

It is not a de Polignac number, because 211333312321321 - 2³⁵ = 211298952582953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211333312321301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 907598650 + ... + 907831468.

It is an arithmetic number, because the mean of its divisors is an integer number (13460721120000).

Almost surely, 2^{211333312321321} is an apocalyptic number.

It is an amenable number.

211333312321321 is a deficient number, since it is larger than the sum of its proper divisors (4038225598679).

211333312321321 is a wasteful number, since it uses less digits than its factorization.

211333312321321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265476.

The product of its digits is 11664, while the sum is 31.

Adding to 211333312321321 its reverse (123123213333112), we get a palindrome (334456525654433).

The spelling of 211333312321321 in words is "two hundred eleven trillion, three hundred thirty-three billion, three hundred twelve million, three hundred twenty-one thousand, three hundred twenty-one".