202102111241 has 2 divisors, whose sum is σ = 202102111242. Its totient is φ = 202102111240.

The previous prime is 202102111229. The next prime is 202102111243. The reversal of 202102111241 is 142111201202.

202102111241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113229558016 + 88872553225 = 336496^2 + 298115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202102111241 is a prime.

Together with 202102111243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (202102111243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101051055620 + 101051055621.

It is an arithmetic number, because the mean of its divisors is an integer number (101051055621).

Almost surely, 2^202102111241 is an apocalyptic number.

It is an amenable number.

202102111241 is a deficient number, since it is larger than the sum of its proper divisors (1).

202102111241 is an equidigital number, since it uses as much as digits as its factorization.

202102111241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202102111241 its reverse (142111201202), we get a palindrome (344213312443).

The spelling of 202102111241 in words is "two hundred two billion, one hundred two million, one hundred eleven thousand, two hundred forty-one".