20244521434453 has 2 divisors, whose sum is σ = 20244521434454. Its totient is φ = 20244521434452.

The previous prime is 20244521434439. The next prime is 20244521434531. The reversal of 20244521434453 is 35443412544202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20100454122609 + 144067311844 = 4483353^2 + 379562^2 .

It is a cyclic number.

It is not a de Polignac number, because 20244521434453 - 2⁵ = 20244521434421 is a prime.

It is a super-2 number, since 2×20244521434453² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20244521434433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10122260717226 + 10122260717227.

It is an arithmetic number, because the mean of its divisors is an integer number (10122260717227).

Almost surely, 2^{20244521434453} is an apocalyptic number.

It is an amenable number.

20244521434453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20244521434453 is an equidigital number, since it uses as much as digits as its factorization.

20244521434453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1843200, while the sum is 43.

Adding to 20244521434453 its reverse (35443412544202), we get a palindrome (55687933978655).

The spelling of 20244521434453 in words is "twenty trillion, two hundred forty-four billion, five hundred twenty-one million, four hundred thirty-four thousand, four hundred fifty-three".