12920103 has 12 divisors (see below), whose sum is σ = 21328528. Its totient is φ = 7382880.

The previous prime is 12920093. The next prime is 12920177. The reversal of 12920103 is 30102921.

It is a happy number.

It is not a de Polignac number, because 12920103 - 2⁵ = 12920071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12920183) 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 11 ways as a sum of consecutive naturals, for example, 102478 + ... + 102603.

Almost surely, 2^12920103 is an apocalyptic number.

12920103 is a deficient number, since it is larger than the sum of its proper divisors (8408425).

12920103 is a wasteful number, since it uses less digits than its factorization.

12920103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205094 (or 205091 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 12920103 is about 3594.4544787770. The cubic root of 12920103 is about 234.6507744794.

The spelling of 12920103 in words is "twelve million, nine hundred twenty thousand, one hundred three".