10203313 has 4 divisors (see below), whose sum is σ = 10225908. Its totient is φ = 10180720.

The previous prime is 10203299. The next prime is 10203317. The reversal of 10203313 is 31330201.

10203313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4092529 + 6110784 = 2023^2 + 2472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10203313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10203293 and 10203302.

It is not an unprimeable number, because it can be changed into a prime (10203317) 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, 10606 + ... + 11527.

It is an arithmetic number, because the mean of its divisors is an integer number (2556477).

Almost surely, 2^10203313 is an apocalyptic number.

It is an amenable number.

10203313 is a deficient number, since it is larger than the sum of its proper divisors (22595).

10203313 is an equidigital number, since it uses as much as digits as its factorization.

10203313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22594.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 10203313 is about 3194.2625126937. The cubic root of 10203313 is about 216.8937660901.

Adding to 10203313 its reverse (31330201), we get a palindrome (41533514).

The spelling of 10203313 in words is "ten million, two hundred three thousand, three hundred thirteen".