202010145145181 has 2 divisors, whose sum is σ = 202010145145182. Its totient is φ = 202010145145180.

The previous prime is 202010145145169. The next prime is 202010145145187. The reversal of 202010145145181 is 181541541010202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132491403061081 + 69518742084100 = 11510491^2 + 8337790^2 .

It is a cyclic number.

It is not a de Polignac number, because 202010145145181 - 2¹⁸ = 202010144883037 is a prime.

It is a super-2 number, since 2×202010145145181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202010145145187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101005072572590 + 101005072572591.

It is an arithmetic number, because the mean of its divisors is an integer number (101005072572591).

Almost surely, 2^{202010145145181} is an apocalyptic number.

It is an amenable number.

202010145145181 is a deficient number, since it is larger than the sum of its proper divisors (1).

202010145145181 is an equidigital number, since it uses as much as digits as its factorization.

202010145145181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12800, while the sum is 35.

Adding to 202010145145181 its reverse (181541541010202), we get a palindrome (383551686155383).

The spelling of 202010145145181 in words is "two hundred two trillion, ten billion, one hundred forty-five million, one hundred forty-five thousand, one hundred eighty-one".