138310103 has 2 divisors, whose sum is σ = 138310104. Its totient is φ = 138310102.

The previous prime is 138310099. The next prime is 138310129. The reversal of 138310103 is 301013831.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138310103 - 2² = 138310099 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138310153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69155051 + 69155052.

It is an arithmetic number, because the mean of its divisors is an integer number (69155052).

Almost surely, 2^138310103 is an apocalyptic number.

138310103 is a deficient number, since it is larger than the sum of its proper divisors (1).

138310103 is an equidigital number, since it uses as much as digits as its factorization.

138310103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 138310103 is about 11760.5315781218. The cubic root of 138310103 is about 517.1517138092.

Adding to 138310103 its reverse (301013831), we get a palindrome (439323934).

The spelling of 138310103 in words is "one hundred thirty-eight million, three hundred ten thousand, one hundred three".