12123320331 has 8 divisors (see below), whose sum is σ = 16228828224. Its totient is φ = 8050013000.

The previous prime is 12123320311. The next prime is 12123320333. The reversal of 12123320331 is 13302332121.

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 12123320331 - 2⁶ = 12123320267 is a prime.

It is a super-2 number, since 2×12123320331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12123320298 and 12123320307.

It is not an unprimeable number, because it can be changed into a prime (12123320333) 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, 8049261 + ... + 8050766.

It is an arithmetic number, because the mean of its divisors is an integer number (2028603528).

Almost surely, 2^12123320331 is an apocalyptic number.

12123320331 is a deficient number, since it is larger than the sum of its proper divisors (4105507893).

12123320331 is a wasteful number, since it uses less digits than its factorization.

12123320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16100281.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12123320331 its reverse (13302332121), we get a palindrome (25425652452).

The spelling of 12123320331 in words is "twelve billion, one hundred twenty-three million, three hundred twenty thousand, three hundred thirty-one".