103989313 has 2 divisors, whose sum is σ = 103989314. Its totient is φ = 103989312.

The previous prime is 103989311. The next prime is 103989317. The reversal of 103989313 is 313989301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86248369 + 17740944 = 9287^2 + 4212^2 .

It is a cyclic number.

It is not a de Polignac number, because 103989313 - 2¹ = 103989311 is a prime.

Together with 103989311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (103989311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51994656 + 51994657.

It is an arithmetic number, because the mean of its divisors is an integer number (51994657).

Almost surely, 2^103989313 is an apocalyptic number.

It is an amenable number.

103989313 is a deficient number, since it is larger than the sum of its proper divisors (1).

103989313 is an equidigital number, since it uses as much as digits as its factorization.

103989313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 103989313 is about 10197.5150404400. The cubic root of 103989313 is about 470.2508288425.

The spelling of 103989313 in words is "one hundred three million, nine hundred eighty-nine thousand, three hundred thirteen".