12481003 has 4 divisors (see below), whose sum is σ = 12883648. Its totient is φ = 12078360.

The previous prime is 12480997. The next prime is 12481039. The reversal of 12481003 is 30018421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30018421 = 1021 ⋅29401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12481003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12481103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201276 + ... + 201337.

It is an arithmetic number, because the mean of its divisors is an integer number (3220912).

Almost surely, 2^12481003 is an apocalyptic number.

12481003 is a deficient number, since it is larger than the sum of its proper divisors (402645).

12481003 is an equidigital number, since it uses as much as digits as its factorization.

12481003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402644.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 12481003 is about 3532.8463029121. The cubic root of 12481003 is about 231.9618137210.

Adding to 12481003 its reverse (30018421), we get a palindrome (42499424).

The spelling of 12481003 in words is "twelve million, four hundred eighty-one thousand, three".