123123331 has 8 divisors (see below), whose sum is σ = 124474320. Its totient is φ = 121777152.

The previous prime is 123123323. The next prime is 123123337. The reversal of 123123331 is 133321321.

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 123123331 - 2³ = 123123323 is a prime.

It is a super-2 number, since 2×123123331² = 30318709273071122, 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 = 123123299 and 123123308.

It is not an unprimeable number, because it can be changed into a prime (123123337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75240 + ... + 76858.

It is an arithmetic number, because the mean of its divisors is an integer number (15559290).

Almost surely, 2^123123331 is an apocalyptic number.

123123331 is a deficient number, since it is larger than the sum of its proper divisors (1350989).

123123331 is a wasteful number, since it uses less digits than its factorization.

123123331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405.

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

The square root of 123123331 is about 11096.0953042050. The cubic root of 123123331 is about 497.4851469013.

Adding to 123123331 its reverse (133321321), we get a palindrome (256444652).

The spelling of 123123331 in words is "one hundred twenty-three million, one hundred twenty-three thousand, three hundred thirty-one".