12305331 has 48 divisors (see below), whose sum is σ = 20630400. Its totient is φ = 7226496.

The previous prime is 12305327. The next prime is 12305333. The reversal of 12305331 is 13350321.

It is not a de Polignac number, because 12305331 - 2² = 12305327 is a prime.

It is a super-2 number, since 2×12305331² = 302842342039122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148216 + ... + 148298.

It is an arithmetic number, because the mean of its divisors is an integer number (429800).

Almost surely, 2^12305331 is an apocalyptic number.

12305331 is a deficient number, since it is larger than the sum of its proper divisors (8325069).

12305331 is a wasteful number, since it uses less digits than its factorization.

12305331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 12305331 is about 3507.8955229596. The cubic root of 12305331 is about 230.8683682510.

Adding to 12305331 its reverse (13350321), we get a palindrome (25655652).

It can be divided in two parts, 1230 and 5331, that added together give a 8-th power (6561 = 3⁸).

The spelling of 12305331 in words is "twelve million, three hundred five thousand, three hundred thirty-one".