20001131423303 has 2 divisors, whose sum is σ = 20001131423304. Its totient is φ = 20001131423302.

The previous prime is 20001131423269. The next prime is 20001131423309. The reversal of 20001131423303 is 30332413110002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20001131423303 - 2⁸ = 20001131423047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001131423309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000565711651 + 10000565711652.

It is an arithmetic number, because the mean of its divisors is an integer number (10000565711652).

Almost surely, 2^{20001131423303} is an apocalyptic number.

20001131423303 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001131423303 is an equidigital number, since it uses as much as digits as its factorization.

20001131423303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20001131423303 its reverse (30332413110002), we get a palindrome (50333544533305).

The spelling of 20001131423303 in words is "twenty trillion, one billion, one hundred thirty-one million, four hundred twenty-three thousand, three hundred three".