1431323 has 2 divisors, whose sum is σ = 1431324. Its totient is φ = 1431322.

The previous prime is 1431317. The next prime is 1431337. The reversal of 1431323 is 3231341.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1431323 - 2⁴ = 1431307 is a prime.

It is not a weakly prime, because it can be changed into another prime (1431373) 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, 715661 + 715662.

It is an arithmetic number, because the mean of its divisors is an integer number (715662).

2^1431323 is an apocalyptic number.

1431323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431323 is an equidigital number, since it uses as much as digits as its factorization.

1431323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 17.

The square root of 1431323 is about 1196.3791205132. The cubic root of 1431323 is about 112.6970505374.

Adding to 1431323 its reverse (3231341), we get a palindrome (4662664).

The spelling of 1431323 in words is "one million, four hundred thirty-one thousand, three hundred twenty-three".