20044171533311 has 2 divisors, whose sum is σ = 20044171533312. Its totient is φ = 20044171533310.

The previous prime is 20044171533289. The next prime is 20044171533317. The reversal of 20044171533311 is 11333517144002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20044171533311 - 2³⁸ = 19769293626367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20044171533317) 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, 10022085766655 + 10022085766656.

It is an arithmetic number, because the mean of its divisors is an integer number (10022085766656).

Almost surely, 2^{20044171533311} is an apocalyptic number.

20044171533311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20044171533311 is an equidigital number, since it uses as much as digits as its factorization.

20044171533311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 20044171533311 its reverse (11333517144002), we get a palindrome (31377688677313).

The spelling of 20044171533311 in words is "twenty trillion, forty-four billion, one hundred seventy-one million, five hundred thirty-three thousand, three hundred eleven".