211333112321101 has 4 divisors (see below), whose sum is σ = 212554691005212. Its totient is φ = 210111533636992.

The previous prime is 211333112321053. The next prime is 211333112321153. The reversal of 211333112321101 is 101123211333112.

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 200164489202500 + 11168623118601 = 14147950^2 + 3341949^2 .

It is a cyclic number.

It is not a de Polignac number, because 211333112321101 - 2⁷ = 211333112320973 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 (211333119321101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610789341796 + ... + 610789342141.

It is an arithmetic number, because the mean of its divisors is an integer number (53138672751303).

Almost surely, 2^{211333112321101} is an apocalyptic number.

It is an amenable number.

211333112321101 is a deficient number, since it is larger than the sum of its proper divisors (1221578684111).

211333112321101 is a wasteful number, since it uses less digits than its factorization.

211333112321101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221578684110.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 211333112321101 its reverse (101123211333112), we get a palindrome (312456323654213).

The spelling of 211333112321101 in words is "two hundred eleven trillion, three hundred thirty-three billion, one hundred twelve million, three hundred twenty-one thousand, one hundred one".