431205423 has 8 divisors (see below), whose sum is σ = 627207936. Its totient is φ = 261336600.

The previous prime is 431205413. The next prime is 431205427. The reversal of 431205423 is 324502134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 431205423 - 2¹⁷ = 431074351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431205393 and 431205402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431205427) 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 7 ways as a sum of consecutive naturals, for example, 6533383 + ... + 6533448.

It is an arithmetic number, because the mean of its divisors is an integer number (78400992).

Almost surely, 2^431205423 is an apocalyptic number.

431205423 is a deficient number, since it is larger than the sum of its proper divisors (196002513).

431205423 is a wasteful number, since it uses less digits than its factorization.

431205423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13066845.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 431205423 is about 20765.4863415235. The cubic root of 431205423 is about 755.4888712829.

Adding to 431205423 its reverse (324502134), we get a palindrome (755707557).

The spelling of 431205423 in words is "four hundred thirty-one million, two hundred five thousand, four hundred twenty-three".