431325331 has 2 divisors, whose sum is σ = 431325332. Its totient is φ = 431325330.

The previous prime is 431325319. The next prime is 431325337. The reversal of 431325331 is 133523134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431325331 - 2⁷ = 431325203 is a prime.

It is a super-2 number, since 2×431325331² = 372083082324519122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431325296 and 431325305.

It is not a weakly prime, because it can be changed into another prime (431325337) 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 as a sum of consecutive naturals, namely, 215662665 + 215662666.

It is an arithmetic number, because the mean of its divisors is an integer number (215662666).

Almost surely, 2^431325331 is an apocalyptic number.

431325331 is a deficient number, since it is larger than the sum of its proper divisors (1).

431325331 is an equidigital number, since it uses as much as digits as its factorization.

431325331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 25.

The square root of 431325331 is about 20768.3733354348. The cubic root of 431325331 is about 755.5588926379.

Adding to 431325331 its reverse (133523134), we get a palindrome (564848465).

The spelling of 431325331 in words is "four hundred thirty-one million, three hundred twenty-five thousand, three hundred thirty-one".