321040123 has 8 divisors (see below), whose sum is σ = 331842560. Its totient is φ = 310265640.

The previous prime is 321040117. The next prime is 321040129.

It is a happy number.

321040123 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (321040117) and next prime (321040129).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321040123 - 2⁵ = 321040091 is a prime.

It is a super-3 number, since 3×321040123³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321040097 and 321040106.

It is not an unprimeable number, because it can be changed into a prime (321040129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17818 + ... + 30976.

It is an arithmetic number, because the mean of its divisors is an integer number (41480320).

Almost surely, 2^321040123 is an apocalyptic number.

321040123 is a deficient number, since it is larger than the sum of its proper divisors (10802437).

321040123 is a wasteful number, since it uses less digits than its factorization.

321040123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13977.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 321040123 is about 17917.5925559211. The cubic root of 321040123 is about 684.7306544020.

The spelling of 321040123 in words is "three hundred twenty-one million, forty thousand, one hundred twenty-three".