321242123 has 2 divisors, whose sum is σ = 321242124. Its totient is φ = 321242122.

The previous prime is 321242111. The next prime is 321242179.

321242123 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 321242123 - 2⁶ = 321242059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321242095 and 321242104.

It is not a weakly prime, because it can be changed into another prime (321242423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160621061 + 160621062.

It is an arithmetic number, because the mean of its divisors is an integer number (160621062).

Almost surely, 2^321242123 is an apocalyptic number.

321242123 is a deficient number, since it is larger than the sum of its proper divisors (1).

321242123 is an equidigital number, since it uses as much as digits as its factorization.

321242123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 20.

The square root of 321242123 is about 17923.2285875062. The cubic root of 321242123 is about 684.8742362399.

The spelling of 321242123 in words is "three hundred twenty-one million, two hundred forty-two thousand, one hundred twenty-three".