303412013 has 4 divisors (see below), whose sum is σ = 310812348. Its totient is φ = 296011680.

The previous prime is 303411991. The next prime is 303412033. The reversal of 303412013 is 310214303.

It is a happy number.

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 172607044 + 130804969 = 13138^2 + 11437^2 .

It is a cyclic number.

It is not a de Polignac number, because 303412013 - 2²⁰ = 302363437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 303411982 and 303412000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303412033) 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, 3700106 + ... + 3700187.

It is an arithmetic number, because the mean of its divisors is an integer number (77703087).

Almost surely, 2^303412013 is an apocalyptic number.

It is an amenable number.

303412013 is a deficient number, since it is larger than the sum of its proper divisors (7400335).

303412013 is an equidigital number, since it uses as much as digits as its factorization.

303412013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7400334.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 303412013 is about 17418.7259292980. The cubic root of 303412013 is about 671.9612932697.

Adding to 303412013 its reverse (310214303), we get a palindrome (613626316).

The spelling of 303412013 in words is "three hundred three million, four hundred twelve thousand, thirteen".