12123331 has 8 divisors (see below), whose sum is σ = 13548528. Its totient is φ = 10752000.

The previous prime is 12123317. The next prime is 12123341. The reversal of 12123331 is 13332121.

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 12123331 - 2⁵ = 12123299 is a prime.

It is a super-2 number, since 2×12123331² = 293950309071122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12123341) 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, 12990 + ... + 13891.

It is an arithmetic number, because the mean of its divisors is an integer number (1693566).

Almost surely, 2^12123331 is an apocalyptic number.

12123331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12123331 is a deficient number, since it is larger than the sum of its proper divisors (1425197).

12123331 is a wasteful number, since it uses less digits than its factorization.

12123331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26933.

The product of its digits is 108, while the sum is 16.

The square root of 12123331 is about 3481.8574066150. The cubic root of 12123331 is about 229.7245031565.

Adding to 12123331 its reverse (13332121), we get a palindrome (25455452).

The spelling of 12123331 in words is "twelve million, one hundred twenty-three thousand, three hundred thirty-one".