12303331 has 4 divisors (see below), whose sum is σ = 12565152. Its totient is φ = 12041512.

The previous prime is 12303323. The next prime is 12303341. The reversal of 12303331 is 13330321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13330321 = 71 ⋅187751.

It is a cyclic number.

It is not a de Polignac number, because 12303331 - 2³ = 12303323 is a prime.

It is a super-2 number, since 2×12303331² = 302743907391122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12303301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130840 + ... + 130933.

It is an arithmetic number, because the mean of its divisors is an integer number (3141288).

Almost surely, 2^12303331 is an apocalyptic number.

12303331 is a deficient number, since it is larger than the sum of its proper divisors (261821).

12303331 is an equidigital number, since it uses as much as digits as its factorization.

12303331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261820.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 12303331 is about 3507.6104401715. The cubic root of 12303331 is about 230.8558598037.

Adding to 12303331 its reverse (13330321), we get a palindrome (25633652).

The spelling of 12303331 in words is "twelve million, three hundred three thousand, three hundred thirty-one".