210020223231 has 48 divisors (see below), whose sum is σ = 373660822080. Its totient is φ = 110693399040.

The previous prime is 210020223211. The next prime is 210020223239. The reversal of 210020223231 is 132322020012.

210020223231 is a `hidden beast` number, since 210 + 0 + 2 + 0 + 223 + 231 = 666.

It is not a de Polignac number, because 210020223231 - 2²⁷ = 209886005503 is a prime.

It is a super-2 number, since 2×210020223231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020223239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 956221 + ... + 1155161.

It is an arithmetic number, because the mean of its divisors is an integer number (7784600460).

Almost surely, 2^210020223231 is an apocalyptic number.

210020223231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

210020223231 is a deficient number, since it is larger than the sum of its proper divisors (163640598849).

210020223231 is a wasteful number, since it uses less digits than its factorization.

210020223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200256 (or 200253 counting only the distinct ones).

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

Adding to 210020223231 its reverse (132322020012), we get a palindrome (342342243243).

The spelling of 210020223231 in words is "two hundred ten billion, twenty million, two hundred twenty-three thousand, two hundred thirty-one".