12523303 has 4 divisors (see below), whose sum is σ = 13486648. Its totient is φ = 11559960.

The previous prime is 12523283. The next prime is 12523321. The reversal of 12523303 is 30332521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12523303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12523333) 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, 481653 + ... + 481678.

It is an arithmetic number, because the mean of its divisors is an integer number (3371662).

Almost surely, 2^12523303 is an apocalyptic number.

12523303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12523303 is a deficient number, since it is larger than the sum of its proper divisors (963345).

12523303 is an equidigital number, since it uses as much as digits as its factorization.

12523303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963344.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 12523303 is about 3538.8279133069. The cubic root of 12523303 is about 232.2235694143.

Adding to 12523303 its reverse (30332521), we get a palindrome (42855824).

The spelling of 12523303 in words is "twelve million, five hundred twenty-three thousand, three hundred three".