431240223 has 16 divisors (see below), whose sum is σ = 583923200. Its totient is φ = 283046400.

The previous prime is 431240219. The next prime is 431240231. The reversal of 431240223 is 322042134.

It is not a de Polignac number, because 431240223 - 2² = 431240219 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 431240223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431240203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87423 + ... + 92223.

It is an arithmetic number, because the mean of its divisors is an integer number (36495200).

Almost surely, 2^431240223 is an apocalyptic number.

431240223 is a deficient number, since it is larger than the sum of its proper divisors (152682977).

431240223 is a wasteful number, since it uses less digits than its factorization.

431240223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5262.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 431240223 is about 20766.3242534638. The cubic root of 431240223 is about 755.5091943928.

Adding to 431240223 its reverse (322042134), we get a palindrome (753282357).

The spelling of 431240223 in words is "four hundred thirty-one million, two hundred forty thousand, two hundred twenty-three".