321042123 has 28 divisors (see below), whose sum is σ = 483980400. Its totient is φ = 212856336.

The previous prime is 321042109. The next prime is 321042131. The reversal of 321042123 is 321240123.

It is not a de Polignac number, because 321042123 - 2⁸ = 321041867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321042096 and 321042105.

It is not an unprimeable number, because it can be changed into a prime (321042143) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 143965 + ... + 146177.

Almost surely, 2^321042123 is an apocalyptic number.

321042123 is a deficient number, since it is larger than the sum of its proper divisors (162938277).

321042123 is an equidigital number, since it uses as much as digits as its factorization.

321042123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430 (or 2415 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 321042123 is about 17917.6483669035. The cubic root of 321042123 is about 684.7320762995.

Adding to 321042123 its reverse (321240123), we get a palindrome (642282246).

The spelling of 321042123 in words is "three hundred twenty-one million, forty-two thousand, one hundred twenty-three".