20386103 has 4 divisors (see below), whose sum is σ = 20444208. Its totient is φ = 20328000.

The previous prime is 20386099. The next prime is 20386117. The reversal of 20386103 is 30168302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20386103 - 2² = 20386099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20386123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28523 + ... + 29228.

It is an arithmetic number, because the mean of its divisors is an integer number (5111052).

Almost surely, 2^20386103 is an apocalyptic number.

20386103 is a deficient number, since it is larger than the sum of its proper divisors (58105).

20386103 is an equidigital number, since it uses as much as digits as its factorization.

20386103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58104.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20386103 is about 4515.0972304038. The cubic root of 20386103 is about 273.1773816242.

The spelling of 20386103 in words is "twenty million, three hundred eighty-six thousand, one hundred three".