12271403 has 2 divisors, whose sum is σ = 12271404. Its totient is φ = 12271402.

The previous prime is 12271349. The next prime is 12271417. The reversal of 12271403 is 30417221.

12271403 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 is a cyclic number.

It is not a de Polignac number, because 12271403 - 2¹⁶ = 12205867 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12271463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6135701 + 6135702.

It is an arithmetic number, because the mean of its divisors is an integer number (6135702).

Almost surely, 2^12271403 is an apocalyptic number.

12271403 is a deficient number, since it is larger than the sum of its proper divisors (1).

12271403 is an equidigital number, since it uses as much as digits as its factorization.

12271403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12271403 is about 3503.0562370593. The cubic root of 12271403 is about 230.6559911398.

Adding to 12271403 its reverse (30417221), we get a palindrome (42688624).

The spelling of 12271403 in words is "twelve million, two hundred seventy-one thousand, four hundred three".