12030281 has 2 divisors, whose sum is σ = 12030282. Its totient is φ = 12030280.

The previous prime is 12030257. The next prime is 12030283. The reversal of 12030281 is 18203021.

12030281 is digitally balanced in base 2, 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., 8094025 + 3936256 = 2845^2 + 1984^2 .

It is a cyclic number.

It is not a de Polignac number, because 12030281 - 2²² = 7835977 is a prime.

It is a super-2 number, since 2×12030281² = 289455321877922, which contains 22 as substring.

Together with 12030283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12030283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015140 + 6015141.

It is an arithmetic number, because the mean of its divisors is an integer number (6015141).

Almost surely, 2^12030281 is an apocalyptic number.

It is an amenable number.

12030281 is a deficient number, since it is larger than the sum of its proper divisors (1).

12030281 is an equidigital number, since it uses as much as digits as its factorization.

12030281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 12030281 is about 3468.4695472211. The cubic root of 12030281 is about 229.1352594902.

The spelling of 12030281 in words is "twelve million, thirty thousand, two hundred eighty-one".