20065103 has 4 divisors (see below), whose sum is σ = 20074320. Its totient is φ = 20055888.

The previous prime is 20065079. The next prime is 20065109. The reversal of 20065103 is 30156002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20065103 - 2¹² = 20061007 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 (20065109) 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, 683 + ... + 6371.

It is an arithmetic number, because the mean of its divisors is an integer number (5018580).

Almost surely, 2^20065103 is an apocalyptic number.

20065103 is a deficient number, since it is larger than the sum of its proper divisors (9217).

20065103 is an equidigital number, since it uses as much as digits as its factorization.

20065103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9216.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 20065103 is about 4479.4087779527. The cubic root of 20065103 is about 271.7359705422.

The spelling of 20065103 in words is "twenty million, sixty-five thousand, one hundred three".