12103320403 has 4 divisors (see below), whose sum is σ = 12228097000. Its totient is φ = 11978543808.

The previous prime is 12103320389. The next prime is 12103320443. The reversal of 12103320403 is 30402330121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30402330121 = 25097 ⋅1211393.

It is a cyclic number.

It is not a de Polignac number, because 12103320403 - 2²⁵ = 12069765971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12103320443) 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, 62388153 + ... + 62388346.

It is an arithmetic number, because the mean of its divisors is an integer number (3057024250).

Almost surely, 2^12103320403 is an apocalyptic number.

12103320403 is a deficient number, since it is larger than the sum of its proper divisors (124776597).

12103320403 is an equidigital number, since it uses as much as digits as its factorization.

12103320403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124776596.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12103320403 its reverse (30402330121), we get a palindrome (42505650524).

The spelling of 12103320403 in words is "twelve billion, one hundred three million, three hundred twenty thousand, four hundred three".