202431223 has 12 divisors (see below), whose sum is σ = 222000480. Its totient is φ = 183940736.

The previous prime is 202431217. The next prime is 202431233. The reversal of 202431223 is 322134202.

It is a de Polignac number, because none of the positive numbers 2^k-202431223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202431223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202431233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7218 + ... + 21376.

It is an arithmetic number, because the mean of its divisors is an integer number (18500040).

Almost surely, 2^202431223 is an apocalyptic number.

202431223 is a deficient number, since it is larger than the sum of its proper divisors (19569257).

202431223 is a wasteful number, since it uses less digits than its factorization.

202431223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14234 (or 14205 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 202431223 is about 14227.8326880801. The cubic root of 202431223 is about 587.1636564616.

Adding to 202431223 its reverse (322134202), we get a palindrome (524565425).

The spelling of 202431223 in words is "two hundred two million, four hundred thirty-one thousand, two hundred twenty-three".