20330105 has 4 divisors (see below), whose sum is σ = 24396132. Its totient is φ = 16264080.

The previous prime is 20330083. The next prime is 20330117. The reversal of 20330105 is 50103302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50103302 = 2 ⋅25051651.

It can be written as a sum of positive squares in 2 ways, for example, as 14891881 + 5438224 = 3859^2 + 2332^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20330105 is a prime.

It is a super-2 number, since 2×20330105² = 826626338622050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20330105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033006 + ... + 2033015.

It is an arithmetic number, because the mean of its divisors is an integer number (6099033).

Almost surely, 2^20330105 is an apocalyptic number.

It is an amenable number.

20330105 is a deficient number, since it is larger than the sum of its proper divisors (4066027).

20330105 is an equidigital number, since it uses as much as digits as its factorization.

20330105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066026.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 20330105 is about 4508.8917707126. The cubic root of 20330105 is about 272.9270245536.

Adding to 20330105 its reverse (50103302), we get a palindrome (70433407).

The spelling of 20330105 in words is "twenty million, three hundred thirty thousand, one hundred five".