12303281 has 2 divisors, whose sum is σ = 12303282. Its totient is φ = 12303280.

The previous prime is 12303233. The next prime is 12303287. The reversal of 12303281 is 18230321.

12303281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10368400 + 1934881 = 3220^2 + 1391^2 .

It is an emirp because it is prime and its reverse (18230321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12303281 - 2⁶ = 12303217 is a prime.

It is a super-2 number, since 2×12303281² = 302741446729922, which contains 22 as substring.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 12303281 parts by 4960 straight cuts.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (12303287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6151640 + 6151641.

It is an arithmetic number, because the mean of its divisors is an integer number (6151641).

Almost surely, 2^12303281 is an apocalyptic number.

It is an amenable number.

12303281 is a deficient number, since it is larger than the sum of its proper divisors (1).

12303281 is an equidigital number, since it uses as much as digits as its factorization.

12303281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12303281 is about 3507.6033128049. The cubic root of 12303281 is about 230.8555470751.

The spelling of 12303281 in words is "twelve million, three hundred three thousand, two hundred eighty-one".