202031043161 has 2 divisors, whose sum is σ = 202031043162. Its totient is φ = 202031043160.

The previous prime is 202031043133. The next prime is 202031043163. The reversal of 202031043161 is 161340130202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198969523600 + 3061519561 = 446060^2 + 55331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202031043161 is a prime.

Together with 202031043163, 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 (202031043163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101015521580 + 101015521581.

It is an arithmetic number, because the mean of its divisors is an integer number (101015521581).

Almost surely, 2^202031043161 is an apocalyptic number.

It is an amenable number.

202031043161 is a deficient number, since it is larger than the sum of its proper divisors (1).

202031043161 is an equidigital number, since it uses as much as digits as its factorization.

202031043161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 202031043161 its reverse (161340130202), we get a palindrome (363371173363).

The spelling of 202031043161 in words is "two hundred two billion, thirty-one million, forty-three thousand, one hundred sixty-one".