321343123 has 4 divisors (see below), whose sum is σ = 321549760. Its totient is φ = 321136488.

The previous prime is 321343073. The next prime is 321343151.

321343123 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321343123 - 2¹³ = 321334931 is a prime.

It is a super-2 number, since 2×321343123² = 206522805398786258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321343094 and 321343103.

It is not an unprimeable number, because it can be changed into a prime (321343193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100968 + ... + 104101.

It is an arithmetic number, because the mean of its divisors is an integer number (80387440).

Almost surely, 2^321343123 is an apocalyptic number.

321343123 is a deficient number, since it is larger than the sum of its proper divisors (206637).

321343123 is a wasteful number, since it uses less digits than its factorization.

321343123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206636.

The product of its digits is 1296, while the sum is 22.

The square root of 321343123 is about 17926.0459388009. The cubic root of 321343123 is about 684.9460045883.

The spelling of 321343123 in words is "three hundred twenty-one million, three hundred forty-three thousand, one hundred twenty-three".