12103990 has 8 divisors (see below), whose sum is σ = 21787200. Its totient is φ = 4841592.

The previous prime is 12103967. The next prime is 12103997. The reversal of 12103990 is 9930121.

12103990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103997) 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, 605190 + ... + 605209.

It is an arithmetic number, because the mean of its divisors is an integer number (2723400).

Almost surely, 2^12103990 is an apocalyptic number.

12103990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12103990 is a deficient number, since it is larger than the sum of its proper divisors (9683210).

12103990 is a wasteful number, since it uses less digits than its factorization.

12103990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210406.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 12103990 is about 3479.0789010886. The cubic root of 12103990 is about 229.6022741947.

The spelling of 12103990 in words is "twelve million, one hundred three thousand, nine hundred ninety".