431132423 has 4 divisors (see below), whose sum is σ = 432288648. Its totient is φ = 429976200.

The previous prime is 431132417. The next prime is 431132441. The reversal of 431132423 is 324231134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 431132423 - 2²⁰ = 430083847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431132413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577553 + ... + 578298.

It is an arithmetic number, because the mean of its divisors is an integer number (108072162).

Almost surely, 2^431132423 is an apocalyptic number.

431132423 is a deficient number, since it is larger than the sum of its proper divisors (1156225).

431132423 is a wasteful number, since it uses less digits than its factorization.

431132423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156224.

The product of its digits is 1728, while the sum is 23.

The square root of 431132423 is about 20763.7285428220. The cubic root of 431132423 is about 755.4462359193.

Adding to 431132423 its reverse (324231134), we get a palindrome (755363557).

The spelling of 431132423 in words is "four hundred thirty-one million, one hundred thirty-two thousand, four hundred twenty-three".