20235025211 has 4 divisors (see below), whose sum is σ = 20577991800. Its totient is φ = 19892058624.

The previous prime is 20235025199. The next prime is 20235025229. The reversal of 20235025211 is 11252053202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20235025211 - 2¹⁸ = 20234763067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20235025411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171483206 + ... + 171483323.

It is an arithmetic number, because the mean of its divisors is an integer number (5144497950).

Almost surely, 2^20235025211 is an apocalyptic number.

20235025211 is a deficient number, since it is larger than the sum of its proper divisors (342966589).

20235025211 is an equidigital number, since it uses as much as digits as its factorization.

20235025211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342966588.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 20235025211 its reverse (11252053202), we get a palindrome (31487078413).

The spelling of 20235025211 in words is "twenty billion, two hundred thirty-five million, twenty-five thousand, two hundred eleven".