324120431 has 2 divisors, whose sum is σ = 324120432. Its totient is φ = 324120430.

The previous prime is 324120403. The next prime is 324120437. The reversal of 324120431 is 134021423.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 324120431 - 2⁶ = 324120367 is a prime.

It is a super-2 number, since 2×324120431² = 210108107583251522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (324120437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162060215 + 162060216.

It is an arithmetic number, because the mean of its divisors is an integer number (162060216).

Almost surely, 2^324120431 is an apocalyptic number.

324120431 is a deficient number, since it is larger than the sum of its proper divisors (1).

324120431 is an equidigital number, since it uses as much as digits as its factorization.

324120431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 324120431 is about 18003.3449947503. The cubic root of 324120431 is about 686.9136331886.

Adding to 324120431 its reverse (134021423), we get a palindrome (458141854).

The spelling of 324120431 in words is "three hundred twenty-four million, one hundred twenty thousand, four hundred thirty-one".