323431431 has 4 divisors (see below), whose sum is σ = 431241912. Its totient is φ = 215620952.

The previous prime is 323431397. The next prime is 323431439. The reversal of 323431431 is 134134323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134134323 = 3 ⋅44711441.

It is a cyclic number.

It is not a de Polignac number, because 323431431 - 2¹³ = 323423239 is a prime.

It is a super-2 number, since 2×323431431² = 209215781117415522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323431439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53905236 + ... + 53905241.

It is an arithmetic number, because the mean of its divisors is an integer number (107810478).

Almost surely, 2^323431431 is an apocalyptic number.

323431431 is a deficient number, since it is larger than the sum of its proper divisors (107810481).

323431431 is a wasteful number, since it uses less digits than its factorization.

323431431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107810480.

The product of its digits is 2592, while the sum is 24.

The square root of 323431431 is about 17984.1994817673. The cubic root of 323431431 is about 686.4265516330.

Adding to 323431431 its reverse (134134323), we get a palindrome (457565754).

The spelling of 323431431 in words is "three hundred twenty-three million, four hundred thirty-one thousand, four hundred thirty-one".