20441321404313 has 2 divisors, whose sum is σ = 20441321404314. Its totient is φ = 20441321404312.

The previous prime is 20441321404279. The next prime is 20441321404327. The reversal of 20441321404313 is 31340412314402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12873083816464 + 7568237587849 = 3587908^2 + 2751043^2 .

It is a cyclic number.

It is not a de Polignac number, because 20441321404313 - 2⁶ = 20441321404249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20441321404313.

It is not a weakly prime, because it can be changed into another prime (20441321404393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10220660702156 + 10220660702157.

It is an arithmetic number, because the mean of its divisors is an integer number (10220660702157).

Almost surely, 2^{20441321404313} is an apocalyptic number.

It is an amenable number.

20441321404313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20441321404313 is an equidigital number, since it uses as much as digits as its factorization.

20441321404313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 20441321404313 its reverse (31340412314402), we get a palindrome (51781733718715).

The spelling of 20441321404313 in words is "twenty trillion, four hundred forty-one billion, three hundred twenty-one million, four hundred four thousand, three hundred thirteen".