20841103 has 4 divisors (see below), whose sum is σ = 20940088. Its totient is φ = 20742120.

The previous prime is 20841089. The next prime is 20841109. The reversal of 20841103 is 30114802.

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 20841103 - 2⁹ = 20840591 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 (20841109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49176 + ... + 49597.

It is an arithmetic number, because the mean of its divisors is an integer number (5235022).

Almost surely, 2^20841103 is an apocalyptic number.

20841103 is a deficient number, since it is larger than the sum of its proper divisors (98985).

20841103 is an equidigital number, since it uses as much as digits as its factorization.

20841103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98984.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 20841103 is about 4565.2056908753. The cubic root of 20841103 is about 275.1948063218.

Adding to 20841103 its reverse (30114802), we get a palindrome (50955905).

The spelling of 20841103 in words is "twenty million, eight hundred forty-one thousand, one hundred three".