331423 has 2 divisors, whose sum is σ = 331424. Its totient is φ = 331422.

The previous prime is 331399. The next prime is 331447. The reversal of 331423 is 324133.

It is a balanced prime because it is at equal distance from previous prime (331399) and next prime (331447).

It is a cyclic number.

It is not a de Polignac number, because 331423 - 2⁵ = 331391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331397 and 331406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165711 + 165712.

It is an arithmetic number, because the mean of its divisors is an integer number (165712).

2³³¹⁴²³ is an apocalyptic number.

331423 is a deficient number, since it is larger than the sum of its proper divisors (1).

331423 is an equidigital number, since it uses as much as digits as its factorization.

331423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 16.

The square root of 331423 is about 575.6934948391. The cubic root of 331423 is about 69.2034184775.

Adding to 331423 its reverse (324133), we get a palindrome (655556).

The spelling of 331423 in words is "three hundred thirty-one thousand, four hundred twenty-three".