211323211123 has 8 divisors (see below), whose sum is σ = 220520973600. Its totient is φ = 202126265088.

The previous prime is 211323211081. The next prime is 211323211129. The reversal of 211323211123 is 321112323112.

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 211323211123 - 2¹⁷ = 211323080051 is a prime.

It is a super-2 number, since 2×211323211123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211323211094 and 211323211103.

It is not an unprimeable number, because it can be changed into a prime (211323211129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357763 + ... + 742051.

It is an arithmetic number, because the mean of its divisors is an integer number (27565121700).

Almost surely, 2^211323211123 is an apocalyptic number.

211323211123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

211323211123 is a deficient number, since it is larger than the sum of its proper divisors (9197762477).

211323211123 is a wasteful number, since it uses less digits than its factorization.

211323211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408221.

The product of its digits is 432, while the sum is 22.

Adding to 211323211123 its reverse (321112323112), we get a palindrome (532435534235).

The spelling of 211323211123 in words is "two hundred eleven billion, three hundred twenty-three million, two hundred eleven thousand, one hundred twenty-three".