211320312211033 has 4 divisors (see below), whose sum is σ = 223750918811700. Its totient is φ = 198889705610368.

The previous prime is 211320312210971. The next prime is 211320312211037. The reversal of 211320312211033 is 330112213023112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102531177589824 + 108789134621209 = 10125768^2 + 10430203^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211320312211033 is a prime.

It is a super-3 number, since 3×211320312211033³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211320312210989 and 211320312211007.

It is not an unprimeable number, because it can be changed into a prime (211320312211037) 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 3 ways as a sum of consecutive naturals, for example, 6215303300308 + ... + 6215303300341.

It is an arithmetic number, because the mean of its divisors is an integer number (55937729702925).

Almost surely, 2^{211320312211033} is an apocalyptic number.

It is an amenable number.

211320312211033 is a deficient number, since it is larger than the sum of its proper divisors (12430606600667).

211320312211033 is a wasteful number, since it uses less digits than its factorization.

211320312211033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12430606600666.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 211320312211033 its reverse (330112213023112), we get a palindrome (541432525234145).

The spelling of 211320312211033 in words is "two hundred eleven trillion, three hundred twenty billion, three hundred twelve million, two hundred eleven thousand, thirty-three".