102103013 has 2 divisors, whose sum is σ = 102103014. Its totient is φ = 102103012.

The previous prime is 102103009. The next prime is 102103039. The reversal of 102103013 is 310301201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77827684 + 24275329 = 8822^2 + 4927^2 .

It is a cyclic number.

It is not a de Polignac number, because 102103013 - 2² = 102103009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102102985 and 102103003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102103613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051506 + 51051507.

It is an arithmetic number, because the mean of its divisors is an integer number (51051507).

Almost surely, 2^102103013 is an apocalyptic number.

It is an amenable number.

102103013 is a deficient number, since it is larger than the sum of its proper divisors (1).

102103013 is an equidigital number, since it uses as much as digits as its factorization.

102103013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 102103013 is about 10104.6035548160. The cubic root of 102103013 is about 467.3901109597.

Adding to 102103013 its reverse (310301201), we get a palindrome (412404214).

The spelling of 102103013 in words is "one hundred two million, one hundred three thousand, thirteen".