12381203 has 4 divisors (see below), whose sum is σ = 12475848. Its totient is φ = 12286560.

The previous prime is 12381169. The next prime is 12381223. The reversal of 12381203 is 30218321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12381203 - 2¹⁴ = 12364819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12381223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47126 + ... + 47387.

It is an arithmetic number, because the mean of its divisors is an integer number (3118962).

Almost surely, 2^12381203 is an apocalyptic number.

12381203 is a deficient number, since it is larger than the sum of its proper divisors (94645).

12381203 is an equidigital number, since it uses as much as digits as its factorization.

12381203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94644.

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

The square root of 12381203 is about 3518.6933654412. The cubic root of 12381203 is about 231.3418911164.

Adding to 12381203 its reverse (30218321), we get a palindrome (42599524).

The spelling of 12381203 in words is "twelve million, three hundred eighty-one thousand, two hundred three".