20322105 has 32 divisors (see below), whose sum is σ = 33573504. Its totient is φ = 10492416.

The previous prime is 20322103. The next prime is 20322119. The reversal of 20322105 is 50122302.

It is not a de Polignac number, because 20322105 - 2¹ = 20322103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20322103) 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 31 ways as a sum of consecutive naturals, for example, 73227 + ... + 73503.

It is an arithmetic number, because the mean of its divisors is an integer number (1049172).

Almost surely, 2^20322105 is an apocalyptic number.

It is an amenable number.

20322105 is a deficient number, since it is larger than the sum of its proper divisors (13251399).

20322105 is a wasteful number, since it uses less digits than its factorization.

20322105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20322105 is about 4508.0045474689. The cubic root of 20322105 is about 272.8912204648.

Adding to 20322105 its reverse (50122302), we get a palindrome (70444407).

The spelling of 20322105 in words is "twenty million, three hundred twenty-two thousand, one hundred five".