20010200120243 has 2 divisors, whose sum is σ = 20010200120244. Its totient is φ = 20010200120242.

The previous prime is 20010200120191. The next prime is 20010200120257. The reversal of 20010200120243 is 34202100201002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20010200120243 - 2¹⁰ = 20010200119219 is a prime.

It is not a weakly prime, because it can be changed into another prime (20010200125243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005100060121 + 10005100060122.

It is an arithmetic number, because the mean of its divisors is an integer number (10005100060122).

Almost surely, 2^{20010200120243} is an apocalyptic number.

20010200120243 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010200120243 is an equidigital number, since it uses as much as digits as its factorization.

20010200120243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20010200120243 its reverse (34202100201002), we get a palindrome (54212300321245).

The spelling of 20010200120243 in words is "twenty trillion, ten billion, two hundred million, one hundred twenty thousand, two hundred forty-three".