431330023 has 2 divisors, whose sum is σ = 431330024. Its totient is φ = 431330022.

The previous prime is 431329981. The next prime is 431330027. The reversal of 431330023 is 320033134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431330023 - 2¹⁷ = 431198951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431330027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215665011 + 215665012.

It is an arithmetic number, because the mean of its divisors is an integer number (215665012).

Almost surely, 2^431330023 is an apocalyptic number.

431330023 is a deficient number, since it is larger than the sum of its proper divisors (1).

431330023 is an equidigital number, since it uses as much as digits as its factorization.

431330023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 431330023 is about 20768.4862953466. The cubic root of 431330023 is about 755.5616323097.

Adding to 431330023 its reverse (320033134), we get a palindrome (751363157).

The spelling of 431330023 in words is "four hundred thirty-one million, three hundred thirty thousand, twenty-three".