20212031223 has 32 divisors (see below), whose sum is σ = 31684915200. Its totient is φ = 12698596800.

The previous prime is 20212031167. The next prime is 20212031249. The reversal of 20212031223 is 32213021202.

It is not a de Polignac number, because 20212031223 - 2⁶ = 20212031159 is a prime.

It is a super-3 number, since 3×20212031223³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20212031196 and 20212031205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212031923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5158 + ... + 201123.

It is an arithmetic number, because the mean of its divisors is an integer number (990153600).

Almost surely, 2^20212031223 is an apocalyptic number.

20212031223 is a deficient number, since it is larger than the sum of its proper divisors (11472883977).

20212031223 is a wasteful number, since it uses less digits than its factorization.

20212031223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206500 (or 206494 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20212031223 its reverse (32213021202), we get a palindrome (52425052425).

The spelling of 20212031223 in words is "twenty billion, two hundred twelve million, thirty-one thousand, two hundred twenty-three".