12361903 has 2 divisors, whose sum is σ = 12361904. Its totient is φ = 12361902.

The previous prime is 12361897. The next prime is 12361927. The reversal of 12361903 is 30916321.

It is a weak prime.

It is an emirp because it is prime and its reverse (30916321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12361903 - 2⁵ = 12361871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12361933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6180951 + 6180952.

It is an arithmetic number, because the mean of its divisors is an integer number (6180952).

Almost surely, 2^12361903 is an apocalyptic number.

12361903 is a deficient number, since it is larger than the sum of its proper divisors (1).

12361903 is an equidigital number, since it uses as much as digits as its factorization.

12361903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 12361903 is about 3515.9498005518. The cubic root of 12361903 is about 231.2216222300.

It can be divided in two parts, 123 and 61903, that added together give a palindrome (62026).

The spelling of 12361903 in words is "twelve million, three hundred sixty-one thousand, nine hundred three".