13042303 has 4 divisors (see below), whose sum is σ = 13728760. Its totient is φ = 12355848.

The previous prime is 13042283. The next prime is 13042307. The reversal of 13042303 is 30324031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30324031 = 163 ⋅186037.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13042303 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 (13042307) 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 in 3 ways as a sum of consecutive naturals, for example, 343200 + ... + 343237.

It is an arithmetic number, because the mean of its divisors is an integer number (3432190).

Almost surely, 2^13042303 is an apocalyptic number.

13042303 is a deficient number, since it is larger than the sum of its proper divisors (686457).

13042303 is an equidigital number, since it uses as much as digits as its factorization.

13042303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686456.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 13042303 is about 3611.4128814081. The cubic root of 13042303 is about 235.3882400880.

Adding to 13042303 its reverse (30324031), we get a palindrome (43366334).

The spelling of 13042303 in words is "thirteen million, forty-two thousand, three hundred three".