12303205 has 4 divisors (see below), whose sum is σ = 14763852. Its totient is φ = 9842560.

The previous prime is 12303197. The next prime is 12303209. The reversal of 12303205 is 50230321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1896129 + 10407076 = 1377^2 + 3226^2 .

It is not a de Polignac number, because 12303205 - 2³ = 12303197 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303209) 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, 1230316 + ... + 1230325.

It is an arithmetic number, because the mean of its divisors is an integer number (3690963).

Almost surely, 2^12303205 is an apocalyptic number.

It is an amenable number.

12303205 is a deficient number, since it is larger than the sum of its proper divisors (2460647).

12303205 is an equidigital number, since it uses as much as digits as its factorization.

12303205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460646.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 12303205 is about 3507.5924791800. The cubic root of 12303205 is about 230.8550717261.

Adding to 12303205 its reverse (50230321), we get a palindrome (62533526).

The spelling of 12303205 in words is "twelve million, three hundred three thousand, two hundred five".