123321331 has 8 divisors (see below), whose sum is σ = 147066624. Its totient is φ = 101108040.

The previous prime is 123321329. The next prime is 123321347. The reversal of 123321331 is 133123321.

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 123321331 - 2¹ = 123321329 is a prime.

It is a super-2 number, since 2×123321331² = 30416301359223122, 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 = 123321299 and 123321308.

It is not an unprimeable number, because it can be changed into a prime (123321361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382825 + ... + 383146.

It is an arithmetic number, because the mean of its divisors is an integer number (18383328).

Almost surely, 2^123321331 is an apocalyptic number.

123321331 is a deficient number, since it is larger than the sum of its proper divisors (23745293).

123321331 is an equidigital number, since it uses as much as digits as its factorization.

123321331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766001.

The product of its digits is 324, while the sum is 19.

The square root of 123321331 is about 11105.0137775691. The cubic root of 123321331 is about 497.7516799339.

Adding to 123321331 its reverse (133123321), we get a palindrome (256444652).

The spelling of 123321331 in words is "one hundred twenty-three million, three hundred twenty-one thousand, three hundred thirty-one".