20132120305 has 16 divisors (see below), whose sum is σ = 27263563200. Its totient is φ = 14136660160.

The previous prime is 20132120291. The next prime is 20132120321. The reversal of 20132120305 is 50302123102.

It is not a de Polignac number, because 20132120305 - 2¹¹ = 20132118257 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6309415 + ... + 6312604.

It is an arithmetic number, because the mean of its divisors is an integer number (1703972700).

Almost surely, 2^20132120305 is an apocalyptic number.

It is an amenable number.

20132120305 is a deficient number, since it is larger than the sum of its proper divisors (7131442895).

20132120305 is a wasteful number, since it uses less digits than its factorization.

20132120305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12622064.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 20132120305 its reverse (50302123102), we get a palindrome (70434243407).

The spelling of 20132120305 in words is "twenty billion, one hundred thirty-two million, one hundred twenty thousand, three hundred five".