211311010020323 has 4 divisors (see below), whose sum is σ = 213403198238448. Its totient is φ = 209218821802200.

The previous prime is 211311010020317. The next prime is 211311010020349. The reversal of 211311010020323 is 323020010113112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 211311010020323 - 2¹⁰ = 211311010019299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211311010020295 and 211311010020304.

It is not an unprimeable number, because it can be changed into a prime (211311010020823) 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, 1046094108911 + ... + 1046094109112.

It is an arithmetic number, because the mean of its divisors is an integer number (53350799559612).

Almost surely, 2^{211311010020323} is an apocalyptic number.

211311010020323 is a deficient number, since it is larger than the sum of its proper divisors (2092188218125).

211311010020323 is a wasteful number, since it uses less digits than its factorization.

211311010020323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092188218124.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 211311010020323 its reverse (323020010113112), we get a palindrome (534331020133435).

The spelling of 211311010020323 in words is "two hundred eleven trillion, three hundred eleven billion, ten million, twenty thousand, three hundred twenty-three".