12103420 has 24 divisors (see below), whose sum is σ = 29048544. Its totient is φ = 4149696.

The previous prime is 12103417. The next prime is 12103433. The reversal of 12103420 is 2430121.

It is a self number, because there is not a number n which added to its sum of digits gives 12103420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43087 + ... + 43366.

It is an arithmetic number, because the mean of its divisors is an integer number (1210356).

Almost surely, 2^12103420 is an apocalyptic number.

12103420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103420 is an abundant number, since it is smaller than the sum of its proper divisors (16945124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12103420 is a wasteful number, since it uses less digits than its factorization.

12103420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86469 (or 86467 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12103420 is about 3478.9969818900. The cubic root of 12103420 is about 229.5986700016.

Adding to 12103420 its reverse (2430121), we get a palindrome (14533541).

The spelling of 12103420 in words is "twelve million, one hundred three thousand, four hundred twenty".