321242423 has 2 divisors, whose sum is σ = 321242424. Its totient is φ = 321242422.

The previous prime is 321242419. The next prime is 321242431. The reversal of 321242423 is 324242123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321242423 - 2² = 321242419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321242123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160621211 + 160621212.

It is an arithmetic number, because the mean of its divisors is an integer number (160621212).

Almost surely, 2^321242423 is an apocalyptic number.

321242423 is a deficient number, since it is larger than the sum of its proper divisors (1).

321242423 is an equidigital number, since it uses as much as digits as its factorization.

321242423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 23.

The square root of 321242423 is about 17923.2369565322. The cubic root of 321242423 is about 684.8744494355.

Adding to 321242423 its reverse (324242123), we get a palindrome (645484546).

The spelling of 321242423 in words is "three hundred twenty-one million, two hundred forty-two thousand, four hundred twenty-three".