202111111102193 has 2 divisors, whose sum is σ = 202111111102194. Its totient is φ = 202111111102192.

The previous prime is 202111111102189. The next prime is 202111111102259. The reversal of 202111111102193 is 391201111111202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198761160599824 + 3349950502369 = 14098268^2 + 1830287^2 .

It is a cyclic number.

It is not a de Polignac number, because 202111111102193 - 2² = 202111111102189 is a prime.

It is not a weakly prime, because it can be changed into another prime (202111111102123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101055555551096 + 101055555551097.

It is an arithmetic number, because the mean of its divisors is an integer number (101055555551097).

Almost surely, 2^{202111111102193} is an apocalyptic number.

It is an amenable number.

202111111102193 is a deficient number, since it is larger than the sum of its proper divisors (1).

202111111102193 is an equidigital number, since it uses as much as digits as its factorization.

202111111102193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 26.

Adding to 202111111102193 its reverse (391201111111202), we get a palindrome (593312222213395).

The spelling of 202111111102193 in words is "two hundred two trillion, one hundred eleven billion, one hundred eleven million, one hundred two thousand, one hundred ninety-three".