431213323 has 4 divisors (see below), whose sum is σ = 432137160. Its totient is φ = 430289488.

The previous prime is 431213221. The next prime is 431213329. The reversal of 431213323 is 323312134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323312134 = 2 ⋅161656067.

It is a cyclic number.

It is not a de Polignac number, because 431213323 - 2⁹ = 431212811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431213294 and 431213303.

It is not an unprimeable number, because it can be changed into a prime (431213329) 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, 461218 + ... + 462151.

It is an arithmetic number, because the mean of its divisors is an integer number (108034290).

Almost surely, 2^431213323 is an apocalyptic number.

431213323 is a deficient number, since it is larger than the sum of its proper divisors (923837).

431213323 is an equidigital number, since it uses as much as digits as its factorization.

431213323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923836.

The product of its digits is 1296, while the sum is 22.

The square root of 431213323 is about 20765.6765601316. The cubic root of 431213323 is about 755.4934849584.

Adding to 431213323 its reverse (323312134), we get a palindrome (754525457).

The spelling of 431213323 in words is "four hundred thirty-one million, two hundred thirteen thousand, three hundred twenty-three".