201324000181 has 2 divisors, whose sum is σ = 201324000182. Its totient is φ = 201324000180.

The previous prime is 201324000049. The next prime is 201324000193. The reversal of 201324000181 is 181000423102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123348464100 + 77975536081 = 351210^2 + 279241^2 .

It is a cyclic number.

It is not a de Polignac number, because 201324000181 - 2³¹ = 199176516533 is a prime.

It is a super-2 number, since 2×201324000181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201324000481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100662000090 + 100662000091.

It is an arithmetic number, because the mean of its divisors is an integer number (100662000091).

Almost surely, 2^201324000181 is an apocalyptic number.

It is an amenable number.

201324000181 is a deficient number, since it is larger than the sum of its proper divisors (1).

201324000181 is an equidigital number, since it uses as much as digits as its factorization.

201324000181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 201324000181 its reverse (181000423102), we get a palindrome (382324423283).

The spelling of 201324000181 in words is "two hundred one billion, three hundred twenty-four million, one hundred eighty-one", and thus it is an aban number.