211211111030323 has 4 divisors (see below), whose sum is σ = 214790960369880. Its totient is φ = 207631261690768.

The previous prime is 211211111030317. The next prime is 211211111030329. The reversal of 211211111030323 is 323030111112112.

211211111030323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (211211111030317) and next prime (211211111030329).

It is a cyclic number.

It is not a de Polignac number, because 211211111030323 - 2⁴¹ = 209012087774771 is a prime.

It is a super-2 number, since 2×211211111030323² (a number of 29 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 = 211211111030294 and 211211111030303.

It is not an unprimeable number, because it can be changed into a prime (211211111030329) 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, 1789924669690 + ... + 1789924669807.

It is an arithmetic number, because the mean of its divisors is an integer number (53697740092470).

Almost surely, 2^{211211111030323} is an apocalyptic number.

211211111030323 is a deficient number, since it is larger than the sum of its proper divisors (3579849339557).

211211111030323 is an equidigital number, since it uses as much as digits as its factorization.

211211111030323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3579849339556.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 211211111030323 its reverse (323030111112112), we get a palindrome (534241222142435).

The spelling of 211211111030323 in words is "two hundred eleven trillion, two hundred eleven billion, one hundred eleven million, thirty thousand, three hundred twenty-three".