3103205513 has 2 divisors, whose sum is σ = 3103205514. Its totient is φ = 3103205512.

The previous prime is 3103205489. The next prime is 3103205531. The reversal of 3103205513 is 3155023013.

3103205513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (3103205531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3024120064 + 79085449 = 54992^2 + 8893^2 .

It is a cyclic number.

It is not a de Polignac number, because 3103205513 - 2²⁶ = 3036096649 is a prime.

It is not a weakly prime, because it can be changed into another prime (3103205593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1551602756 + 1551602757.

It is an arithmetic number, because the mean of its divisors is an integer number (1551602757).

Almost surely, 2^3103205513 is an apocalyptic number.

It is an amenable number.

3103205513 is a deficient number, since it is larger than the sum of its proper divisors (1).

3103205513 is an equidigital number, since it uses as much as digits as its factorization.

3103205513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 3103205513 is about 55706.4225471354. The cubic root of 3103205513 is about 1458.6021387911.

Adding to 3103205513 its reverse (3155023013), we get a palindrome (6258228526).

The spelling of 3103205513 in words is "three billion, one hundred three million, two hundred five thousand, five hundred thirteen".