210020132310181 has 2 divisors, whose sum is σ = 210020132310182. Its totient is φ = 210020132310180.

The previous prime is 210020132310061. The next prime is 210020132310211. The reversal of 210020132310181 is 181013231020012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209890988388225 + 129143921956 = 14487615^2 + 359366^2 .

It is a cyclic number.

It is not a de Polignac number, because 210020132310181 - 2¹⁵ = 210020132277413 is a prime.

It is a super-2 number, since 2×210020132310181² (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 (210020132320181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105010066155090 + 105010066155091.

It is an arithmetic number, because the mean of its divisors is an integer number (105010066155091).

Almost surely, 2^{210020132310181} is an apocalyptic number.

It is an amenable number.

210020132310181 is a deficient number, since it is larger than the sum of its proper divisors (1).

210020132310181 is an equidigital number, since it uses as much as digits as its factorization.

210020132310181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 210020132310181 its reverse (181013231020012), we get a palindrome (391033363330193).

The spelling of 210020132310181 in words is "two hundred ten trillion, twenty billion, one hundred thirty-two million, three hundred ten thousand, one hundred eighty-one".