303113 has 4 divisors (see below), whose sum is σ = 310548. Its totient is φ = 295680.

The previous prime is 303097. The next prime is 303119. The reversal of 303113 is 311303.

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 29584 + 273529 = 172^2 + 523^2 .

It is a cyclic number.

It is not a de Polignac number, because 303113 - 2⁴ = 303097 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 303094 and 303103.

It is not an unprimeable number, because it can be changed into a prime (303119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3656 + ... + 3737.

It is an arithmetic number, because the mean of its divisors is an integer number (77637).

2³⁰³¹¹³ is an apocalyptic number.

It is an amenable number.

303113 is a deficient number, since it is larger than the sum of its proper divisors (7435).

303113 is an equidigital number, since it uses as much as digits as its factorization.

303113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7434.

The product of its (nonzero) digits is 27, while the sum is 11.

The square root of 303113 is about 550.5569906922. The cubic root of 303113 is about 67.1740481092.

Adding to 303113 its reverse (311303), we get a palindrome (614416).

The spelling of 303113 in words is "three hundred three thousand, one hundred thirteen".