103636123 has 2 divisors, whose sum is σ = 103636124. Its totient is φ = 103636122.

The previous prime is 103636121. The next prime is 103636157. The reversal of 103636123 is 321636301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103636123 - 2¹ = 103636121 is a prime.

It is a super-3 number, since 3×103636123³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 103636121, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (103636121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51818061 + 51818062.

It is an arithmetic number, because the mean of its divisors is an integer number (51818062).

Almost surely, 2^103636123 is an apocalyptic number.

103636123 is a deficient number, since it is larger than the sum of its proper divisors (1).

103636123 is an equidigital number, since it uses as much as digits as its factorization.

103636123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 103636123 is about 10180.1828569039. The cubic root of 103636123 is about 469.7178372781.

The spelling of 103636123 in words is "one hundred three million, six hundred thirty-six thousand, one hundred twenty-three".