20231055205 has 16 divisors (see below), whose sum is σ = 24415147008. Its totient is φ = 16093000000.

The previous prime is 20231055191. The next prime is 20231055209. The reversal of 20231055205 is 50255013202.

It is a happy number.

It is not a de Polignac number, because 20231055205 - 2⁷ = 20231055077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20231055205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231055209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3674955 + ... + 3680455.

It is an arithmetic number, because the mean of its divisors is an integer number (1525946688).

Almost surely, 2^20231055205 is an apocalyptic number.

It is an amenable number.

20231055205 is a deficient number, since it is larger than the sum of its proper divisors (4184091803).

20231055205 is a wasteful number, since it uses less digits than its factorization.

20231055205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9548.

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 20231055205 its reverse (50255013202), we get a palindrome (70486068407).

The spelling of 20231055205 in words is "twenty billion, two hundred thirty-one million, fifty-five thousand, two hundred five".