180101020201 has 8 divisors (see below), whose sum is σ = 183110597384. Its totient is φ = 177093285120.

The previous prime is 180101020193. The next prime is 180101020223. The reversal of 180101020201 is 102020101081.

It can be written as a sum of positive squares in 4 ways, for example, as 77159506176 + 102941514025 = 277776^2 + 320845^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 180101020201 - 2³ = 180101020193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180101020601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262650 + ... + 655123.

It is an arithmetic number, because the mean of its divisors is an integer number (22888824673).

Almost surely, 2^180101020201 is an apocalyptic number.

It is an amenable number.

180101020201 is a deficient number, since it is larger than the sum of its proper divisors (3009577183).

180101020201 is an equidigital number, since it uses as much as digits as its factorization.

180101020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921051.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 180101020201 its reverse (102020101081), we get a palindrome (282121121282).

The spelling of 180101020201 in words is "one hundred eighty billion, one hundred one million, twenty thousand, two hundred one".