12103412 has 12 divisors (see below), whose sum is σ = 21379680. Its totient is φ = 5994936.

The previous prime is 12103409. The next prime is 12103417. The reversal of 12103412 is 21430121.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103417) 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, 13712 + ... + 14567.

It is an arithmetic number, because the mean of its divisors is an integer number (1781640).

Almost surely, 2^12103412 is an apocalyptic number.

It is an amenable number.

12103412 is a deficient number, since it is larger than the sum of its proper divisors (9276268).

12103412 is a wasteful number, since it uses less digits than its factorization.

12103412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28390 (or 28388 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12103412 is about 3478.9958321332. The cubic root of 12103412 is about 229.5986194157.

Adding to 12103412 its reverse (21430121), we get a palindrome (33533533).

The spelling of 12103412 in words is "twelve million, one hundred three thousand, four hundred twelve".