12103387 has 2 divisors, whose sum is σ = 12103388. Its totient is φ = 12103386.

The previous prime is 12103381. The next prime is 12103409. The reversal of 12103387 is 78330121.

It is a weak prime.

It is an emirp because it is prime and its reverse (78330121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12103387 - 2²³ = 3714779 is a prime.

It is a super-4 number, since 4×12103387⁴ (a number of 29 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (12103381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051693 + 6051694.

It is an arithmetic number, because the mean of its divisors is an integer number (6051694).

Almost surely, 2^12103387 is an apocalyptic number.

12103387 is a deficient number, since it is larger than the sum of its proper divisors (1).

12103387 is an equidigital number, since it uses as much as digits as its factorization.

12103387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12103387 is about 3478.9922391405. The cubic root of 12103387 is about 229.5984613344.

The spelling of 12103387 in words is "twelve million, one hundred three thousand, three hundred eighty-seven".