431324423 has 2 divisors, whose sum is σ = 431324424. Its totient is φ = 431324422.

The previous prime is 431324419. The next prime is 431324449. The reversal of 431324423 is 324423134.

It is an a-pointer prime, because the next prime (431324449) can be obtained adding 431324423 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431324423 - 2² = 431324419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431324392 and 431324401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431324623) 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, 215662211 + 215662212.

It is an arithmetic number, because the mean of its divisors is an integer number (215662212).

Almost surely, 2^431324423 is an apocalyptic number.

431324423 is a deficient number, since it is larger than the sum of its proper divisors (1).

431324423 is an equidigital number, since it uses as much as digits as its factorization.

431324423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 26.

The square root of 431324423 is about 20768.3514752616. The cubic root of 431324423 is about 755.5583624519.

Adding to 431324423 its reverse (324423134), we get a palindrome (755747557).

The spelling of 431324423 in words is "four hundred thirty-one million, three hundred twenty-four thousand, four hundred twenty-three".