431203423 has 16 divisors (see below), whose sum is σ = 523793920. Its totient is φ = 346739616.

The previous prime is 431203417. The next prime is 431203429. The reversal of 431203423 is 324302134.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (431203417) and next prime (431203429).

It is a cyclic number.

It is not a de Polignac number, because 431203423 - 2⁵ = 431203391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431203394 and 431203403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431203429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2040 + ... + 29437.

It is an arithmetic number, because the mean of its divisors is an integer number (32737120).

Almost surely, 2^431203423 is an apocalyptic number.

431203423 is a deficient number, since it is larger than the sum of its proper divisors (92590497).

431203423 is a wasteful number, since it uses less digits than its factorization.

431203423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31606.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 431203423 is about 20765.4381846375. The cubic root of 431203423 is about 755.4877032549.

Adding to 431203423 its reverse (324302134), we get a palindrome (755505557).

The spelling of 431203423 in words is "four hundred thirty-one million, two hundred three thousand, four hundred twenty-three".