12199903 has 2 divisors, whose sum is σ = 12199904. Its totient is φ = 12199902.

The previous prime is 12199883. The next prime is 12199907. The reversal of 12199903 is 30999121.

It is a strong prime.

It is an emirp because it is prime and its reverse (30999121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12199903 - 2¹⁷ = 12068831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12199907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6099951 + 6099952.

It is an arithmetic number, because the mean of its divisors is an integer number (6099952).

Almost surely, 2^12199903 is an apocalyptic number.

12199903 is a deficient number, since it is larger than the sum of its proper divisors (1).

12199903 is an equidigital number, since it uses as much as digits as its factorization.

12199903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 12199903 is about 3492.8359537774. The cubic root of 12199903 is about 230.2071416813.

The spelling of 12199903 in words is "twelve million, one hundred ninety-nine thousand, nine hundred three".