20244243002513 has 2 divisors, whose sum is σ = 20244243002514. Its totient is φ = 20244243002512.

The previous prime is 20244243002483. The next prime is 20244243002519. The reversal of 20244243002513 is 31520034244202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13963846133329 + 6280396869184 = 3736823^2 + 2506072^2 .

It is a cyclic number.

It is not a de Polignac number, because 20244243002513 - 2³⁶ = 20175523525777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20244243002513.

It is not a weakly prime, because it can be changed into another prime (20244243002519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10122121501256 + 10122121501257.

It is an arithmetic number, because the mean of its divisors is an integer number (10122121501257).

Almost surely, 2^{20244243002513} is an apocalyptic number.

It is an amenable number.

20244243002513 is a deficient number, since it is larger than the sum of its proper divisors (1).

20244243002513 is an equidigital number, since it uses as much as digits as its factorization.

20244243002513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 20244243002513 its reverse (31520034244202), we get a palindrome (51764277246715).

The spelling of 20244243002513 in words is "twenty trillion, two hundred forty-four billion, two hundred forty-three million, two thousand, five hundred thirteen".