231213200211 has 72 divisors (see below), whose sum is σ = 411522222384. Its totient is φ = 124299141120.

The previous prime is 231213200203. The next prime is 231213200213. The reversal of 231213200211 is 112002312132.

231213200211 is a `hidden beast` number, since 231 + 21 + 3 + 200 + 211 = 666.

It is not a de Polignac number, because 231213200211 - 2³ = 231213200203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231213200213) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 24907891 + ... + 24917171.

It is an arithmetic number, because the mean of its divisors is an integer number (5715586422).

Almost surely, 2^231213200211 is an apocalyptic number.

231213200211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

231213200211 is a deficient number, since it is larger than the sum of its proper divisors (180309022173).

231213200211 is a wasteful number, since it uses less digits than its factorization.

231213200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12641 (or 12631 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 231213200211 its reverse (112002312132), we get a palindrome (343215512343).

The spelling of 231213200211 in words is "two hundred thirty-one billion, two hundred thirteen million, two hundred thousand, two hundred eleven".