20350135110261 has 16 divisors (see below), whose sum is σ = 29603376027648. Its totient is φ = 12332090425200.

The previous prime is 20350135110251. The next prime is 20350135110289. The reversal of 20350135110261 is 16201153105302.

It is not a de Polignac number, because 20350135110261 - 2⁶ = 20350135110197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20350135110211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32807911 + ... + 33422436.

It is an arithmetic number, because the mean of its divisors is an integer number (1850211001728).

Almost surely, 2^{20350135110261} is an apocalyptic number.

It is an amenable number.

20350135110261 is a deficient number, since it is larger than the sum of its proper divisors (9253240917387).

20350135110261 is a wasteful number, since it uses less digits than its factorization.

20350135110261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66239672.

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 20350135110261 its reverse (16201153105302), we get a palindrome (36551288215563).

The spelling of 20350135110261 in words is "twenty trillion, three hundred fifty billion, one hundred thirty-five million, one hundred ten thousand, two hundred sixty-one".