20302042240043 has 2 divisors, whose sum is σ = 20302042240044. Its totient is φ = 20302042240042.

The previous prime is 20302042239859. The next prime is 20302042240049. The reversal of 20302042240043 is 34004224020302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20302042240043 - 2¹² = 20302042235947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20302042239994 and 20302042240021.

It is not a weakly prime, because it can be changed into another prime (20302042240049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151021120021 + 10151021120022.

It is an arithmetic number, because the mean of its divisors is an integer number (10151021120022).

Almost surely, 2^{20302042240043} is an apocalyptic number.

20302042240043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302042240043 is an equidigital number, since it uses as much as digits as its factorization.

20302042240043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 20302042240043 its reverse (34004224020302), we get a palindrome (54306266260345).

The spelling of 20302042240043 in words is "twenty trillion, three hundred two billion, forty-two million, two hundred forty thousand, forty-three".