20302323212105 has 32 divisors (see below), whose sum is σ = 27680349397248. Its totient is φ = 14163921273600.

The previous prime is 20302323211981. The next prime is 20302323212219. The reversal of 20302323212105 is 50121232320302.

It is not a de Polignac number, because 20302323212105 - 2²² = 20302319017801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70113062 + ... + 70402031.

It is an arithmetic number, because the mean of its divisors is an integer number (865010918664).

Almost surely, 2^{20302323212105} is an apocalyptic number.

It is an amenable number.

20302323212105 is a deficient number, since it is larger than the sum of its proper divisors (7378026185143).

20302323212105 is a wasteful number, since it uses less digits than its factorization.

20302323212105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140515217.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 20302323212105 its reverse (50121232320302), we get a palindrome (70423555532407).

The spelling of 20302323212105 in words is "twenty trillion, three hundred two billion, three hundred twenty-three million, two hundred twelve thousand, one hundred five".