20320025313043 has 2 divisors, whose sum is σ = 20320025313044. Its totient is φ = 20320025313042.

The previous prime is 20320025312963. The next prime is 20320025313053. The reversal of 20320025313043 is 34031352002302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20320025313043 is a prime.

It is not a weakly prime, because it can be changed into another prime (20320025313053) 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, 10160012656521 + 10160012656522.

It is an arithmetic number, because the mean of its divisors is an integer number (10160012656522).

Almost surely, 2^{20320025313043} is an apocalyptic number.

20320025313043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20320025313043 is an equidigital number, since it uses as much as digits as its factorization.

20320025313043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 20320025313043 its reverse (34031352002302), we get a palindrome (54351377315345).

The spelling of 20320025313043 in words is "twenty trillion, three hundred twenty billion, twenty-five million, three hundred thirteen thousand, forty-three".