200021231223 has 32 divisors (see below), whose sum is σ = 323790865920. Its totient is φ = 121028402880.

The previous prime is 200021231191. The next prime is 200021231227. The reversal of 200021231223 is 322132120002.

200021231223 is a `hidden beast` number, since 200 + 0 + 212 + 31 + 223 = 666.

It is not a de Polignac number, because 200021231223 - 2⁵ = 200021231191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200021231196 and 200021231205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021231227) 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, 362515 + ... + 729012.

It is an arithmetic number, because the mean of its divisors is an integer number (10118464560).

Almost surely, 2^200021231223 is an apocalyptic number.

200021231223 is a deficient number, since it is larger than the sum of its proper divisors (123769634697).

200021231223 is a wasteful number, since it uses less digits than its factorization.

200021231223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092164 (or 1092158 counting only the distinct ones).

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

Adding to 200021231223 its reverse (322132120002), we get a palindrome (522153351225).

The spelling of 200021231223 in words is "two hundred billion, twenty-one million, two hundred thirty-one thousand, two hundred twenty-three".