138730109603 has 2 divisors, whose sum is σ = 138730109604. Its totient is φ = 138730109602.

The previous prime is 138730109599. The next prime is 138730109663. The reversal of 138730109603 is 306901037831.

138730109603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (306901037831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138730109603 - 2² = 138730109599 is a prime.

It is not a weakly prime, because it can be changed into another prime (138730109663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69365054801 + 69365054802.

It is an arithmetic number, because the mean of its divisors is an integer number (69365054802).

Almost surely, 2^138730109603 is an apocalyptic number.

138730109603 is a deficient number, since it is larger than the sum of its proper divisors (1).

138730109603 is an equidigital number, since it uses as much as digits as its factorization.

138730109603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 138730109603 in words is "one hundred thirty-eight billion, seven hundred thirty million, one hundred nine thousand, six hundred three".