18130353201 has 21 divisors (see below), whose sum is σ = 27188546601. Its totient is φ = 12084478452.

The previous prime is 18130353187. The next prime is 18130353247. The reversal of 18130353201 is 10235303181.

The square root of 18130353201 is 134649.

It is a perfect power (a square), and thus also a powerful number.

18130353201 is a `hidden beast` number, since 1 + 81 + 30 + 353 + 201 = 666.

It is not a de Polignac number, because 18130353201 - 2⁵ = 18130353169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18130353281) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 3633030 + ... + 3638016.

Almost surely, 2^18130353201 is an apocalyptic number.

18130353201 is the 134649-th square number.

18130353201 is the 67325-th centered octagonal number.

It is an amenable number.

18130353201 is a deficient number, since it is larger than the sum of its proper divisors (9058193400).

18130353201 is an frugal number, since it uses more digits than its factorization.

18130353201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9992 (or 4990 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 18130353201 its reverse (10235303181), we get a palindrome (28365656382).

The spelling of 18130353201 in words is "eighteen billion, one hundred thirty million, three hundred fifty-three thousand, two hundred one".