20202120304043 has 2 divisors, whose sum is σ = 20202120304044. Its totient is φ = 20202120304042.

The previous prime is 20202120304021. The next prime is 20202120304099. The reversal of 20202120304043 is 34040302120202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20202120304043 - 2¹² = 20202120299947 is a prime.

It is not a weakly prime, because it can be changed into another prime (20202120304643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101060152021 + 10101060152022.

It is an arithmetic number, because the mean of its divisors is an integer number (10101060152022).

Almost surely, 2^{20202120304043} is an apocalyptic number.

20202120304043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202120304043 is an equidigital number, since it uses as much as digits as its factorization.

20202120304043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20202120304043 its reverse (34040302120202), we get a palindrome (54242422424245).

The spelling of 20202120304043 in words is "twenty trillion, two hundred two billion, one hundred twenty million, three hundred four thousand, forty-three".