180010010101 has 4 divisors (see below), whose sum is σ = 181692346752. Its totient is φ = 178327673452.

The previous prime is 180010010093. The next prime is 180010010113. The reversal of 180010010101 is 101010010081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 180010010101 - 2³ = 180010010093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180010010161) 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 3 ways as a sum of consecutive naturals, for example, 841168165 + ... + 841168378.

It is an arithmetic number, because the mean of its divisors is an integer number (45423086688).

Almost surely, 2^180010010101 is an apocalyptic number.

It is an amenable number.

180010010101 is a deficient number, since it is larger than the sum of its proper divisors (1682336651).

180010010101 is a wasteful number, since it uses less digits than its factorization.

180010010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682336650.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 180010010101 its reverse (101010010081), we get a palindrome (281020020182).

The spelling of 180010010101 in words is "one hundred eighty billion, ten million, ten thousand, one hundred one".