20350135110251 has 2 divisors, whose sum is σ = 20350135110252. Its totient is φ = 20350135110250.

The previous prime is 20350135110223. The next prime is 20350135110289. The reversal of 20350135110251 is 15201153105302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20350135110251 is a prime.

It is not a weakly prime, because it can be changed into another 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 as a sum of consecutive naturals, namely, 10175067555125 + 10175067555126.

It is an arithmetic number, because the mean of its divisors is an integer number (10175067555126).

Almost surely, 2^{20350135110251} is an apocalyptic number.

20350135110251 is a deficient number, since it is larger than the sum of its proper divisors (1).

20350135110251 is an equidigital number, since it uses as much as digits as its factorization.

20350135110251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 20350135110251 its reverse (15201153105302), we get a palindrome (35551288215553).

The spelling of 20350135110251 in words is "twenty trillion, three hundred fifty billion, one hundred thirty-five million, one hundred ten thousand, two hundred fifty-one".