20411103 has 4 divisors (see below), whose sum is σ = 27214808. Its totient is φ = 13607400.

The previous prime is 20411093. The next prime is 20411107. The reversal of 20411103 is 30111402.

It is a happy number.

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

It is not a de Polignac number, because 20411103 - 2⁸ = 20410847 is a prime.

It is a super-2 number, since 2×20411103² = 833226251353218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3401848 + ... + 3401853.

It is an arithmetic number, because the mean of its divisors is an integer number (6803702).

Almost surely, 2^20411103 is an apocalyptic number.

20411103 is a deficient number, since it is larger than the sum of its proper divisors (6803705).

20411103 is an equidigital number, since it uses as much as digits as its factorization.

20411103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6803704.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 20411103 is about 4517.8648718172. The cubic root of 20411103 is about 273.2890041469.

Adding to 20411103 its reverse (30111402), we get a palindrome (50522505).

The spelling of 20411103 in words is "twenty million, four hundred eleven thousand, one hundred three".