12881003 has 4 divisors (see below), whose sum is σ = 12888288. Its totient is φ = 12873720.

The previous prime is 12880999. The next prime is 12881023. The reversal of 12881003 is 30018821.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12881003 - 2² = 12880999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12881003.

It is not an unprimeable number, because it can be changed into a prime (12881023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893 + ... + 5153.

It is an arithmetic number, because the mean of its divisors is an integer number (3222072).

Almost surely, 2^12881003 is an apocalyptic number.

12881003 is a deficient number, since it is larger than the sum of its proper divisors (7285).

12881003 is an equidigital number, since it uses as much as digits as its factorization.

12881003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7284.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 12881003 is about 3589.0114237767. The cubic root of 12881003 is about 234.4138280679.

Adding to 12881003 its reverse (30018821), we get a palindrome (42899824).

The spelling of 12881003 in words is "twelve million, eight hundred eighty-one thousand, three".