20545305144311 has 2 divisors, whose sum is σ = 20545305144312. Its totient is φ = 20545305144310.

The previous prime is 20545305144283. The next prime is 20545305144359. The reversal of 20545305144311 is 11344150354502.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20545305144311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20545305144391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10272652572155 + 10272652572156.

It is an arithmetic number, because the mean of its divisors is an integer number (10272652572156).

Almost surely, 2^{20545305144311} is an apocalyptic number.

20545305144311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20545305144311 is an equidigital number, since it uses as much as digits as its factorization.

20545305144311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 20545305144311 its reverse (11344150354502), we get a palindrome (31889455498813).

The spelling of 20545305144311 in words is "twenty trillion, five hundred forty-five billion, three hundred five million, one hundred forty-four thousand, three hundred eleven".