20323310211 has 16 divisors (see below), whose sum is σ = 30215009920. Its totient is φ = 13500992520.

The previous prime is 20323310207. The next prime is 20323310219. The reversal of 20323310211 is 11201332302.

20323310211 is a `hidden beast` number, since 20 + 323 + 310 + 2 + 11 = 666.

It is not a de Polignac number, because 20323310211 - 2² = 20323310207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20323310219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1322245 + ... + 1337526.

It is an arithmetic number, because the mean of its divisors is an integer number (1888438120).

Almost surely, 2^20323310211 is an apocalyptic number.

20323310211 is a deficient number, since it is larger than the sum of its proper divisors (9891699709).

20323310211 is a wasteful number, since it uses less digits than its factorization.

20323310211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660063 (or 2660057 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20323310211 its reverse (11201332302), we get a palindrome (31524642513).

It can be divided in two parts, 203233 and 10211, that added together give a square (213444 = 462²).

The spelling of 20323310211 in words is "twenty billion, three hundred twenty-three million, three hundred ten thousand, two hundred eleven".