103243313 has 2 divisors, whose sum is σ = 103243314. Its totient is φ = 103243312.

The previous prime is 103243307. The next prime is 103243369. The reversal of 103243313 is 313342301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88134544 + 15108769 = 9388^2 + 3887^2 .

It is a cyclic number.

It is not a de Polignac number, because 103243313 - 2⁶ = 103243249 is a prime.

It is not a weakly prime, because it can be changed into another prime (103243373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51621656 + 51621657.

It is an arithmetic number, because the mean of its divisors is an integer number (51621657).

Almost surely, 2^103243313 is an apocalyptic number.

It is an amenable number.

103243313 is a deficient number, since it is larger than the sum of its proper divisors (1).

103243313 is an equidigital number, since it uses as much as digits as its factorization.

103243313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 103243313 is about 10160.8716653641. The cubic root of 103243313 is about 469.1236317535.

Adding to 103243313 its reverse (313342301), we get a palindrome (416585614).

The spelling of 103243313 in words is "one hundred three million, two hundred forty-three thousand, three hundred thirteen".